terrible and ********* customer service

I have had a contract with Vodacom and it was suppose to end in April ,their customer service advised my last debit order was in March as per my telephone call with the agent ,I also requested my contract to be cancelled as I do not wish to renew ,after calling several times speaking to several agents none of the above was solved ,so ********* and terrible customer service honestly ,they took a debit order after I specifically called in and ask for my refund because the agent gave me false information regarding the last debit order to go off, my contract is not cancelled even though I spoke to the TEAM LEADER SUPERVISOR SEMIAN and I spoke to ANELE and ZAMA MALINGA up till this day they have not resolved my query what pathetic customer service ,after so many calls still no one can resolve my query and cancel my contract and give me my refund ...