Sorry to learn about your unpleasant experience with us. We request you to elaborate the lock out and the special considerations you are referring to, by writing an email to support (at) zohomail (dot) com. Having specific details along with your account information will help us to analyze and make necessary corrections and enhancements. Looking forward to hearing from you.
I think you are misunderstanding OP. At least I assume that Zoho will not be able to change Google's policies, otherwise that would truly be outstanding customer service.
For me you're not the problem, you just have no power here. Google services are more convenient to use with Google email accounts, they are more prevalent and there is no point in burdening an organization with another email provider if there is a choice.
