Telkom Over Debit account

I I signed up for ADSL with Telkom, I opted for the debit order option. I received an invoice after a month saying I must pay Telkom R679.80. I phoned Mosa Makooa, who sent me the invoice. He informed me that No debit order was done. Telkom did not complete the debit order request. He said we will get the debit order to work from the following month. I paid the R679.80 and sent proof of payment to Mosa asking for Confirmation. He never responded for days. Then I got a new bill saying the outstanding amount has still not been paid and the new total is now R1270.90. So I phoned Mosa. I was told he does not work in the mornings, but the lady who answered said. The payment I made is reflecting in my account and I must ignore the invoice. I will not be debited for this high amount, but instead will only be Debited for the usual monthly amount of R590. Today the debit order went off and I was debited for more than I owe. Telkom now owe me money. I was only supposed to pay R590. But instead the maximum debit order allowed went off.<br> <br> This is not getting resolved. I need to be refunded for the extra amount that went off.