pre - cancellation department useless

Extremely bad and unhelpful service from Vodacom accounts department and cancellation department. Pre cancelled 2accou t 11feb and as per telephone conversation there wasnt supposed to be any debitorder going on end of February but 3rd or march double payment of R4250 were deducted off my account. I have been struggling with vodacom for 3 months now and nobody gives a damn about this and they quick to call for their money but when I expect assistance on a ****up from their side nobody want to accept responsibility for this and they just don't get back to me. I am extremely upset after more than 10years of support and loyalty towards vodacom with not a small account but more than 5 different accounts. I have paid more than R50K in pre cancellations on various accounts and then reopening accounts so I expect better service or atleast some support which is non existent at the moment. Please just resolve this I ask them but no response. This is totally unacceptable and poor customer service...