The Multichoice *******

In May I cancelled my DStv subscription but Multichoice still processed the debit order at the end of May. So, in June I instructed my bank to place a stop order on the drebit order, twice but Multichoice changed the description of the debit order and it again went through. Early in July I phoned the Multichoice customer centre in Cape Town and the woman reversed the debit order and told me that she had stopped all future debit orders. At the end of July no debit order was deducted so I though that everything was okay only to discover that at the end of August they put through a debit order for both July and August. So I have now paid for two months when my service was cut off at the end of June. Surely what Multichoice is doing is both immoral and ******* since the recorded conversation between their call centre assistant and myself will clearly indicate that I asked her to make sure that the debit order would not be submitted again? Is there an ombudsman who handles cases such as this? Also, another question, how can a bank such as FNB allow a debit order to be processed when the description and/or amout is changed each month? My old DStv customer number was ***0.