I can't upgrade my subscription because of phone number cannot text or call

Viet Hoang 20

I'm upgrading my subscription to pay as you go but in step of verify phone number, it cannot verify my phone (my region is VietNam (+84)) i also tried with +84XXXXXXXXX or 0XXXXXXXX nothing worked. So how to pass this issue ?

Viet Hoang 20 Reputation points

2025-04-09T06:43:24.71+00:00

error mess is: There was an error sending the code to your phone. Please check the phone number and try again.
Raja Pothuraju 20,800 Reputation points Microsoft External Staff

2025-04-09T07:49:32.9366667+00:00
Hello @Viet Hoang,

To resolve issues related to phone validation during the subscription upgrade process, we recommend the following steps:

Try Using a Mobile Device: Some customers have resolved their issues by trying the same process from a smartphone browser. If you haven't already, consider using your mobile device to see if that helps.

Check Phone Number Requirements: Ensure that the phone number you are using for verification meets the necessary requirements. Note that Voice-over-IP (VolP) numbers cannot be used for this process. Make sure your phone can receive calls or SMS messages from a United States-based number, and double-check the phone number you entered, including the correct country code.

Troubleshooting Resources: For detailed troubleshooting steps, please refer to this guide: https://learn.microsoft.com/en-us/azure/cost-management-billing/troubleshoot-subscription/troubleshoot-azure-sign-up

If the above steps didn't help you, I can help you out engaging Azure Subscription/Account review team via a support ticket to unblock your number.

To proceed, I will need a few details from you. As this information contains Personally Identifiable Information (PII), please share the following details via private message:

Affected phone number

Contact email address

Please send me the detail via private message.

We can then connect offline to discuss further and assist you in resolving this issue.

Accepted answer

Raja Pothuraju 20,800 Reputation points Microsoft External Staff

2025-04-09T08:11:24.94+00:00

Hello @Viet Hoang,

To address the issue, we contacted our support team and raised a ticket with the Azure Subscription/Account Review team.

A support engineer from the Account Review team will remove the block on your account phone number, allowing you to sign up for a new Azure tenant without any problems.

I hope this information is helpful. Please feel free to reach out if you have any further questions.

If the answer is helpful, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".
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Alhassan EL ALAOUI 25 Reputation points

2025-04-14T08:32:32.23+00:00

Hi @Raja Pothuraju Good day!
Im facing the every same issue, could you help me with a support ticket to reactivate my sub?

Raja Pothuraju 20,800 Reputation points Microsoft External Staff

2025-04-14T08:39:19.5933333+00:00

Hello @Alhassan EL ALAOUI,

Are you trying to sign-up for a new Azure Account? The above-mentioned issue is more related to phone number verification failure. But as per your statement I see your issue is more related to re-activating your existing subscription.

If that's the case, I recommend creating a new thread on the same Q&A forum with as many details about your issue as possible. This will ensure better visibility within the community.

Please create a new Q&A post at https://learn.microsoft.com/en-us/answers/questions/ask/ and select the Azure Cost Management tag when submitting your question.

Alhassan EL ALAOUI 25 Reputation points

2025-04-14T11:02:55.88+00:00

Thx @Raja Pothuraju for your quick response, no I hava an account already and I started to use some servces, but recently I received a message asking me to activate my account as pay as you go, however when I try to do so, and I put my phone number to validate, I get the very same error in this thread, check below:

There was an error sending the code to your phone. Please check the phone number and try again.

Raja Pothuraju 20,800 Reputation points Microsoft External Staff

2025-04-14T11:18:58.7966667+00:00

Hello @Alhassan EL ALAOUI,

Thank you for sharing more details on this.

I can help you out engaging Azure Subscription/Account review team via a support ticket to unblock your number. But I need a new Q&A post like the same.

Please create a new Q&A post at https://learn.microsoft.com/en-us/answers/questions/ask/ and select the Microsoft Entra ID tag when submitting your question.

Alhassan EL ALAOUI 25 Reputation points

2025-04-14T11:44:29.6833333+00:00

Thank you @Raja Pothuraju , just done, below the link:

https://learn.microsoft.com/en-us/answers/questions/2247883/i-cant-upgrade-my-subscription-because-of-phone-nu

Raja Pothuraju 20,800 Reputation points Microsoft External Staff

2025-04-14T11:48:33.8866667+00:00

@Alhassan EL ALAOUI, Thank you.

Posted my comment over the new post.
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