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Every month, a predictable wave of frustration hits call centers and inboxes: customers confused—or worse, angry—about their latest bill.
Sometimes the price goes up unexpectedly. Other times, usage caps are breached, new charges appear, or discounts disappear. And while companies may have valid reasons, customers often feel blindsided, leading to hours of support calls, ticket volume spikes, and frayed trust.
What if there were a better way to address this pain point?
In this blog post, we explore how businesses—especially those offering usage-based services—can proactively reduce support volume and increase customer satisfaction using personalized video explainers powered by Synthesia.
The Modern Billing Model: Flexible, but Frustrating
From SaaS products and telecom plans to gas and electricity usage, variable pricing models have become the norm. In theory, they are fairer—customers pay for what they use. In practice, however, they are often opaque, especially when usage patterns change unexpectedly.
- A product team exceeds their API quota for a cloud tool.
- A family streams more data while traveling.
- A heatwave drives energy consumption through the roof.
These changes are reflected in a higher bill—and often a higher volume of support inquiries.
According to Invoca, 20–30% of all call center traffic is billing-related, and most of it arises from customers who didn’t anticipate a pricing change. These calls are often long (AHT ~8.75 minutes) and emotionally charged, putting pressure on support staff.
Why Reactive Support Isn’t Enough
Here’s the problem: by the time a user contacts support, the damage is done. They’re already frustrated. Worse, they may have started looking for competitors.
This is especially true in SaaS, where net retention is king and even a small uptick in churn can harm long-term revenue. Usage-based pricing helps align value with spend, but only if customers understand how usage correlates with cost.
Sadly, that understanding is rarely intuitive. A spike in queries, more seats, extra data usage—all require explanation. Yet most bills still arrive in bland, dense PDFs, accompanied by generic email subject lines like: “Your monthly invoice is ready.” Not exactly confidence-inspiring.
The Opportunity: Proactive, Personalized Communication
What customers want is simple: to know why something changed.
A whopping 85% of customers say they prefer proactive communication from businesses, especially when it helps them avoid problems before they arise. It’s not enough to issue a bill; you need to contextualize it.
Imagine this: “Hi Sarah, your bill increased by $37 this month due to higher video export usage. Here’s a quick 60-second video that walks you through it visually.”
This type of proactive message builds trust. It says: “We see you. We understand your situation. And we’re here to help.” You’re not waiting for Sarah to get angry—you’re addressing her potential concern before she feels it.
That’s where video comes in.
Why Video is the Perfect Format for Explaining Bills
Text-based communications often fail to convey empathy or clarity. Explainer videos—when used smartly—bridge this gap.
According to Yans Media, 68% of users prefer watching a video over contacting support when they need help. Not only is it more convenient, but it’s also far easier to follow—especially when explaining line items, historical comparisons, or new plan limits.
With Synthesia, these videos can:
- Overlay visuals on real invoices or usage graphs
- Use AI avatars to “walk through” the changes
- Highlight key differences from the previous month
- Include branding and tone tailored to your company’s style
They don’t need to be long. In fact, 📊 videos under 2 minutes perform 25% better, making them ideal for monthly billing summaries.
And because Synthesia supports bulk creation and API-triggered automation, you can do this at scale—generating tens, hundreds, or thousands of personalized explainers each month.

Automating the Workflow: From Data to Video in Minutes
Let’s break down how this would work in practice.
- Trigger: A rule detects a significant bill delta (e.g., 15%+ increase month-over-month). The system flags the account.
- Analyze: Your backend (or an LLM layer) evaluates what caused the difference—extra usage, new product tiers, expired discount, etc.
- Generate Video Script: A short summary script is created: “Your video export limit was increased this month after your team uploaded 40% more content than usual. That’s why your invoice shows an additional $20 in usage fees.”
- Render with Synthesia: Using a pre-built template and your brand’s avatar, the script is turned into a video. You can also include the customer’s actual invoice screenshot or graph overlays.
- Deliver: The video is sent via email or embedded in the billing portal. Support teams can also use it in ticket responses.
Thanks to Synthesia’s API and bulk video uploader, this process can run without human involvement, ensuring timely, consistent delivery every billing cycle.
Results You Can Expect
The impact of this approach is measurable:
Companies using explainer videos for customer support report:
- 19% drop in ticket volume
- 43% fewer billing-related calls
- Higher CSAT scores due to perceived transparency
Businesses adopting usage-based pricing and pairing it with clear communication have seen net retention rates as high as 170%.
Add to that the intangible benefit of reduced support fatigue—fewer irate calls and more meaningful customer interactions—and it’s clear: the ROI is hard to ignore.
Best Practices for Creating Billing Explainer Videos
To get the most from this approach, here are a few tips:
Focus on the delta
Don’t repeat the full bill—just explain what changed and why.
Visuals matter
Use invoice screenshots, graphs, or progress bars to add context.
Keep it short
1–2 minutes is the sweet spot. Attention spans are short.
Humanize the voice
Even if it’s an AI avatar, write scripts like you’re speaking to a friend.
Segment your users
Enterprise accounts might need more detailed breakdowns; casual users might prefer a 30-second summary.
Offer escalation
Close each video with a call to action:
“Still have questions? Click here to speak to support.”
Use Case Snapshot: Telecom, SaaS, and Utilities
This approach works across industries:
- Telecom: Explain roaming charges or new plan adjustments.
- SaaS: Break down feature overuse or plan upgrades.
- Utilities: Highlight seasonal energy spikes or rate changes.
In all cases, the principle is the same: don’t let a billing surprise become a customer support crisis.
Final Thoughts: From Billing Headaches to Relationship Wins
Billing friction is inevitable in usage-based models. But it doesn’t have to be painful—for you or your customers.
By pairing data with empathy and automation with clarity, personalized video explainers can turn moments of confusion into moments of connection.
It’s time to stop hiding behind PDFs and start showing your customers that you care enough to explain the “why.”
With Synthesia, doing this at scale has never been easier.
About the author
Strategic Implementation Specialist
Nicolas Narbais
Nicolas is a solution architect. He has worked across various industries, specializing in SaaS platforms and cloud-based architectures, with expertise in technologies like Datadog, AWS, serverless computing, and data infrastructure.
Passionate about empowering organizations through technology, he has played key roles in guiding large enterprise adopting and embracing cutting-edge products that enhance user experience and streamline business operations. Beyond his technical skills, Nicolas is deeply invested in fostering a culture of collaboration, continuous learning, and knowledge-sharing.
Whether tackling intricate technical challenges or mentoring the next generation of engineers, Nicolas’s approach is always rooted in innovation, efficiency, and excellence.

Frequently asked questions
How can personalized videos reduce billing-related support calls?
Personalized videos proactively explain billing changes before customers get confused or frustrated. By showing exactly what changed and why—using visuals, voice, and real usage data—these videos reduce the need for customers to contact support, leading to fewer tickets and calls.
What types of billing issues are best explained with video?
Videos are ideal for clarifying unexpected charges, usage spikes, plan changes, or expired discounts. Any time there’s a billing delta that might surprise a customer, a short video explanation can help diffuse confusion and prevent churn.
Can these billing videos be automated at scale?
Yes. With tools like Synthesia, you can automatically generate and deliver thousands of personalized videos using templates, APIs, and backend logic that detects bill changes. No manual editing is required, making it highly scalable.
What industries benefit most from billing explainer videos?
SaaS, telecom, and utility companies benefit greatly—any business using variable or usage-based billing. These industries often face support volume spikes tied to monthly invoices, which videos can help mitigate.
What makes video more effective than email or PDF bills?
Video is easier to understand and feels more human. Instead of reading dense PDFs or generic emails, customers get a quick, visual explanation tailored to them. This builds trust, improves clarity, and leads to higher customer satisfaction.