The G Suite admin will have a way to reset the password, initiate a password reset through Gsuite, sometimes they will ask for the last password you remember, I

The G Suite admin will have a way to reset the password, initiate a password reset through Gsuite, sometimes they will ask for the last password you remember, I would try his most common one he used on other things, I think it will still send the password reset but I would try a common one anyway. There should be a password reset email sent that you can click on and reset the GS admin password. https://support.google.com/a/answer/33561 https://support.google.com/a/answer/33561 Does the domain DNS happen to be setup on cloudflare, if you can gain access to that and the DNS, looks like Gsuite has a cname password reset/recovery option.