Apologies to hear the inconvenience caused on your account getting blocked.
However, you need to reach out to Azure subscription management by raising a support request, once your details are validated and if validation go through then your account will be unblocked.
You can use this link and open a support case and provide required details.
Hope this helps.
Please 'Accept as answer' if it helped, so that it can help others in the community looking for help on similar topics.