Unable to Add Bangladeshi Phone Number for Account Verification

Steps to Reproduce:
1. Log in to Adobe account.
2. Go to the option to add/verify phone number.
3. Select country code:
4. Enter a valid mobile number.
5. Click on "Add".

Expected Result:
The system should send a verification code (OTP) to the entered Bangladeshi mobile number.

Actual Result:
An error message appears:
"An error occurred while performing this action. Please try again later."
The number cannot be added or verified.

Screenshot:

Environment:
- Device: Windows 10/11 (PC)
- Browser: Firefox / Chrome (latest version)
- Adobe Account portal

Impact:
I am unable to add or verify their mobile numbers, which blocks them from using essential Adobe services that require phone number verification.

Request:
Please investigate and fix this issue so that phone numbers can be successfully added and verified in Adobe accounts.