No support for vendors.

I have recently bought a restaurant that is listed on UBER EATS, since the 3rd of June myself and the former owner have been trying to change the banking details on this account from theirs to ours.

When you phone the call center you are told to send a mail, however all that is being done is passing the buck around and no one is actually doing anything, I'm currently paying 30% commission and i am not receiving the simplest of back office support.

I don't know what to do anymore, it is not rocket since.