the support tell me : i need remember my account that bing my Identity Verification。 but the question is : i forget the account Id. then support say , they have no way support me to regist the develop account ,unless i remember the Account. I lost. how can i do ?

the support tell me : i need remember my account that bing my Identity Verification。 but the question is : i forget the account Id. then support say , they have no way support me to regist the develop account ,unless i remember the Account. I lost. how can i do ?