Hi @Ekaterina Tsareva • Thank you for reaching out.
You need to open a support ticket either by using this link (If you have access to any other Azure tenant) or using Global Customer Service Phone Number (If you don't have any other Azure Account). The support team will engage data protection team and they will require some evidence that proves your ownership to the verified domain and the tenant that you want to get access to. After reviewing and verifying the request, access to the tenant will be provided. Failing to provide required information may lead to rejection of your request as well.
Unfortunately, there is no other way to get access to the tenant in such scenario.
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