How to fix " We’re unable to validate your phone number " ? Phone number`s problem.

Question

I have tried every format, every solutions on the internet but still dont work. I`m creating an azure account where I met problems with phone number, I tried VietNam number (+84) also tried UK number but all result in the error.
I did try to remove the leading 0, use the "Use a different phone number to verify your identity." button already, I also tried edge and chorm but nothing works.
I think this is the form problems.Please help

Answer 1

Hi Thành Hoàng,
For focused and dedicated assistance with this issue, please file a subscription ticket with our support team. You can submit a (free) support ticket with our Azure subscription support team by creating an Azure support request and selecting Subscription Management as the issue type.

Refer to this FAQ: How do I submit a support request if I can't sign in to the Azure portal?

You can also contact customer service for your country or region.
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