Debit orders for 1 Jan 2018 not presented for payment

Debit orders which were supposed to have been presented by 1 Jan 2018 has still not been actioned. Every time you contact them they just tell you their IT technicians are busy working at the problem. I have called since 3 Jan 2018. When I called today it was the same story. I asked to speak to the consultant's manager, who was not in. When I asked to speak to the manager's manger, the consultant said that he is still on leave. They suggest I pay it but with their debit order system not in such a problem, what if there is a double deduction? Really extremely bad service and nobody can give you an answer for more than a week now.