Have you purchased this account directly from google or from any other vendor(reseller) company? If it is from a vendor you can try contacting them.
How many accounts do you have in this? one of the accounts should be an admin try loging in to the admin console with other ids as well.
I hope you have already tried login to the admin console
If none applies to you , please follow the below recovery form:
https://support.google.com/a/contact/recovery_form
Let me know if you need any further help/clarification.
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