Debit orders on wrong dates and no feedback

The service of this company is just getting worse and worse. They don't care to communicate with clients. No follow ups. No response either. If I try phone, I spend forever waiting to deal with the correct department, to the point where airtime runs out and nobody bothers to call back. You can send multiple call back requests, and nobody contacts you. If you sit in the branch to deal with someone, you also wait forever. I have now had a debit order go off my account on the 22nd, putting my account in the negative. My debit orders are all scheduled for the 1st of each month as my salary is only paid on the last day of the month, so why the change now? Can't get hold of anybody. This is ridiculous. Your service is disgusting.