Hi
Thanks for posting.
Please try the following numbers as per the region applicable and you may further raise the ticket with Azure subscription team - https://support.microsoft.com/en-us/topic/customer-service-phone-numbers-c0389ade-5640-e588-8b0e-28de8afeb3f2#ID0EBBD=signinmsa
For reference - https://zcusa.951200.xyz/en-us/answers/questions/1431080/we-re-unable-to-validate-your-phone-number
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