Since your payment method is not being recognized and you continue to receive the error, the best next step is to contact Vapi support directly for assistance.
You can email [support@vapi.ai](support@vapi.ai) or join the [Vapi Discord community](
https://discord.com/invite/pUFNcf2WmH) and post in the #support channel for real-time help.
Be sure to mention the payment method type (AMEX via "Link") and include screenshots of the error for faster resolution.
Sources:
- [Vapi Support Documentation](
https://docs.vapi.ai/support)
- [Vapi Changelog Credits Purchase](
https://docs.vapi.ai/changelog/2024/11/30)