Unable to receive verification code for Apple Account creation

This error message means the service is temporarily unable to send codes to your phone number, likely due to a temporary issue or a security measure. To fix this, try waiting and retrying later, checking your phone's signal and connection, or using a different phone number. Other solutions include restarting your device, disabling any VPN, or, for Apple IDs, verifying the account password complexity and completing any pending agreements in App Store Connect. 

Based on: Get a verification code and sign in with two-factor authentication - Apple Support

A code is sent first to your trusted devices (some other Apple computer or Apple mobile device signed in with your account) automatically. If you have a trusted device running iOS 9 and later, OS X El Capitan and later, iPadOS 13 and later, or watchOS 6 and later, the verification code is displayed automatically on your trusted devices.

If you had set up a recovery contact (again a good idea), read Help a friend or family member as their account recovery contact - Apple Support

From: Suddenly not getting texts for two factor… - Apple Community

Q: Suddenly not getting texts for two factor authentication on iPhone

A: Reset network settings:

Go to Settings > General > Transfer or Reset iPhone > Reset > Reset Network Settings

If you see. “Verification codes can't be sent to this phone number at this time. Please try again later,”:

1) Use this link to check the status of Apple’s various services and servers —>

Apple - Support - System Status

2) Disable entirely any VPN you are using.

3) Wait a few hours and try again. Maybe it really does mean not at this particular time.

Contact Apple. Refer to this page for Apple Support for different countries ➔

Choose your country or region - Official Apple Support

Select your country (if you do not see your country, also look for "other" in regions; e.g., "Other Africa"), then "Choose a product". Click the "show" item under each category for more selections. If you don't see one that handles your issue then keep experimenting with selections until you reach one that gets you a chat session or a telephone call and get the representative to redirect you.

If after all that you still can’t receive verification codes, you can request account recovery to regain access to your account [ How to use account recovery when you can’t reset your Apple Account password - Apple Support ]. Account recovery might take a few days or longer, depending on the specific account information you can provide to verify your identity.