Debit order

My Debit order went of my bank account on the 1st on the 26 of February 2016 DSTV cut my DSTV because they said that my debit order was returned by my bank on the 26 I phone them they said they can't do anything without proof of payment I have no printer of internet at home so went there and show them on my phone that the debit order were never returned by the bank. They then again said they could do nothing without a printout I e-mail the printout on Monday to Molefe Moteme which he only read on Tuesday. Today a double payment went of my bank account I phoned them and re e-mailed the bank statement that had transactions from the 1 - 29th of February 2016. They again would not accepted it because there are no transaction after the 25th and the debit order was returned on the 26 (really it must tell you that nothing was returned) I then ask to speak to the supervisor with the same result. Then I ask for the Manager they promised that he/she will contact me within a hour - NOTHING. It is scary that they can reverse payment and can not correct it afterwards. I am waiting for the 26 of this month when they going to reverse this month's payment also - just because they can