Issues when i need to cancel the contract

On May 14th, i contact the call centre requesting that my contract be terminated it was after i learnt that the consultant who previously assisted me with regards to data bundle contract didnt do as i requested. i was advised that it takes 3-4 working days to terminate contract, i asked the consultant to give the number to the termination dpt & she advised that its not possible from there i was transfered from one dpt to the other & that was frustrating for me. the consultant advised that the request for termination is sent to cancellation dpt & i will hear from them in 3-4 working days. its sad to say i'm still waiting. what puzzles me is me getting the airtime, sms's & data bundles again on 21st & them attempting to debit the R249.00 from my bank account on the 25th whereas i called them in many ocassions asking for termination. i contacted call centre immidiately after i received data & airtime on the 21st but the subscriber kept saying theres a problem @ call centre \that was a 1st i must say"& today again i called & i was holding for over an hr. Pls assist me"