@احمد صبرى عبدالراضى احمد , Based on my understanding, you are experiencing the same issue, discussed here: The subscription is not allowed to create or update the serverfarm
Kindly try the following:
- Retry to provision the App Service after a few hours
- If your requirement fits, try deploying in a different region.
- If you continue to receive this error, please raise a a support ticket for a closer investigation.
Users with a similar issue, resolved with the suggestions provided.
We appreciate your patience and understanding!
--
If the answer helped (pointed, you in the right direction) > please click Accept Answer - it will help users to find the answers quickly.