Hi team 👋We’re facing a billing issue related to ...
# ❓・ai-evy-supportv
vedant
12/19/2025, 10:49 AM@AI Evy Hi team 👋
We’re facing a billing issue related to concurrency charges.
We had temporarily increased our concurrency to 100, but reduced it later. However, we’re still seeing a $800 charge on the ongoing invoice, and another $800 charge on the open invoice as well.
This looks like a duplicate or incorrect charge, since the higher concurrency wasn’t active for the full billing period.
Could you please review our concurrency usage and help correct the invoices if needed?
Happy to share account/workspace details if required. Thanks!
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AI Evy
12/19/2025, 10:50 AMThanks for tagging me @vedant. I'll look through relevant sources and get back to you shortly.
AI Evy
12/19/2025, 10:50 AM
To learn more, see the sources I considered:
[[1] Understand concurrency & limits](https://docs.retellai.com/deploy/concurrency)
[[2] Retell | Terms Of Service](https://www.retellai.com/legal/terms-of-service)
AI Evy
12/19/2025, 10:50 AM### Answer
Hi! 👋
I don't have access to your account details or the ability to review/modify invoices directly. For billing disputes and invoice corrections, you'll need to reach out to the Retell AI team directly.
Here's what I can share from the documentation:
- Pay-As-You-Go users are allocated a quota of 20 concurrent calls by default, and you can upgrade concurrency through the Billing page. [(1) ]()
- Services are charged on a monthly basis (Subscription Period) , and fees are generally non-refundable except as required by law or as expressly provided in the Terms. [(2) ]()
To get your billing issue resolved:
- Contact the support team at [support@retellai.com](support@retellai.com) [(1) ]()
- Visit [Contact Sales]() for direct assistance
Be sure to include your Workspace ID and details about when you adjusted your concurrency so they can review your usage accurately.
AI Evy
12/19/2025, 10:50 AMFeel free to tag @AI Evy with additional questions. I also appreciate feedback, it helps me improve.