Debit order problem

I app**** for contract towards end of August and my first debit order was supposed to be deducted end of September for R530 and now I have received a message saying, "confirmation of payment arrangement for R701.06, please pay into ABSA Acc No ********** 150 and use cell number as reference." I am so angry right now because agreement was that, you guys will debit R530 which you never deducted from my account. When I went to ABSA to make this payment, I was advised that the account number is invalid. The service is appalling. To show I was willing to make the payment of R701.06 which I know nothing of, I took time and went to ABSA only to find out the account number is incorrect.

Now my service have all been barred. Whose fault is it that you guys failed to deduct my account on time and also provided me with invalid account? I am seriously disappointed as this was my first contract with you but this is the madness I am put through. This will be added on my credit record and I will suffer for your incompetence. I need someone to resolve this as soon as possible and open my services before the end of the day or I will cancel this contract.