Bad experience. Please help.

Zoom has stopped our services even we pay everything. Costumer service recommended  to write to manager, manager recommended to create tickets as a result we do not have zoom and loosing money. We paid more than 2500 euro. Who can I contact? Who care about user experience within zoom?

Our subscription  was cancelled due to a Zoom system mistake. We had a pending overdue invoice that we didn't know about. We paid the total amount that was in the invoice. And the quote we received didn't include VAT tax. So we paid the exact amount and our service was enabled. Now all our teachers are suffering due to your own system bug in the quote that you sent to us. We were not supposed to have any pending invoices in place.