@circuit3830
I'm here to help you with that! To update your payment method, please follow these steps:
1. Go to the Vapi Dashboard at dashboard.vapi.ai/billing.
2. Navigate to the [Billing] section.
3. Add or update your card information.
Once you've updated your billing information, you should be able to purchase a phone number without any issues. If you encounter any further problems or have any questions, please let me know!