Bad Bad billing service

I was called by the Telkom sales team, and they gave me a contract ,I was than told about the admin fees and the phones was delivered, in March the other phone got ****** I called Telkom to block the phone, I also asked when the debit order will go of as I see they did not take it in March I was advised in April 2019,Never once was I told that I would be charged double debits of course April they deducted and I made provision for my contract amount all of a sudden R490.0 went off obviously it reversed as I did not plan for that amount this month a whole R955.00 I'm now being told of the double debits and the R202. penalty fees, who asked them to double deduct or not to debit in march they never told me this if they did I would have made provision for this debit now who is to be blamed for the penalty fees, I called today not 180 could help me or 10123 I will definitely reversed this debit up until they sort this out .