We got hacked too.  Spent most of the day with 2 different QB reps to try to problem solve.  Our non-profit account got locked down because of the hack, which they had tried to change email and password.  Our main admin person left the company a few months ago, and she is listed as the contact.  She is not available or willing to support in any way.  We have put in request to change the back up email for this account, but the ID we have for that account is expired so the rep told us it will most likely be denied - THEN OFFERED NO ALTERNATIVE!  So none of us - me the Executive Director, our bookkeeper nor our accountant have access - the account apparently no longer exists.  We are paid in advance, yet have no access.  I am using this platform via my private QB Online account to see if I can get any direction on next steps.  We rely on QB extensively.