Unable to complete purchase – Error Code 5613 while buying Zoom Phone number

I’m trying to purchase a Zoom Phone number, but the checkout fails every time with the following message: “An error has occurred, and we are unable to complete your purchase… (Error code: 5613).”

I have double-checked all billing details (address and company information) and card information (Visa card number, expiration date, and CVV). I also re-entered the details multiple times, but the issue persists.

Could you please help me resolve this error and confirm whether there is any payment verification requirement or risk-related block on my account?