Thanks for posting in the Community, @Amoabeng63.
I can surely help you out. When you register for the QuickBooks ProAdvisor program, the system will require you to enter your phone number. This is helpful for additional verification. It mainly exists to protect your account. It's required to use a US/Canadian phone number to set up an account in QBOA.
To address your concern, you'll have to sign up for a US/Canadian phone number to successfully create an account. However, if you're trying to register for the QuickBooks ProAdvisor from another region, you need to apply for global using this link.
Feel free to visit these articles for additional information about QuickBooks ProAdvisor program:
Please come back or simply click the REPLY button if you have more questions about QuickBooks ProAdvisor program. I'm always around to help you. Take care.