TELKOM BLOCKED ACCOUNT AND THEN ACCOUNT REDEBITTED DOUBLE

MY CONTRACT IS BLOCKED since the 16th YET R1900 WAS DOUBLE DEBITTED ON THE 13TH OCT- According to Telkom the debit order was unsuccessful that was debited on the 30th September (debit order date is the 1st October). I never got notified that it reversed or was unsuccessful via message or a telephonic call. then on the 13th October a double debit of R1986.12 went off WITHOUT COMMUNICATION. I called Telkom and was advised my account is handed to the Collectors as its in arrears and they will monitor my account for the next 2months then it will be reinstated. My mobile account is blocked even after debiting double?!! TELKOM to explain howcome my account is with collectors when i haven't missed any premium ALL OF A SUDDEN it failed (and i see I'm not the only client who experienced this on the same day) there was money in my account when the debit order had to go off. Furthermore This redebit doesn't even show on my statement neither does FNB pick it up but the money is out of my account.