No support for paying customers!!

We have paid our account every month with no changes in banking details etc but the last 6 months worth of payments have not been allocated. Our account has been suspended and the call center cant do anything about it as they claim to not have access to the credit control system or their contact details. This is absurd. We have comp**** with their request for POP's even though the fault is their own system yet we are suspended for non payment. The call center's only solution they could offer is that we have to wait for our ticket to be looked at. We have had absolutely no support and it's already been a week since our query!!