Respect a Clients Cancellation

Contract ended in Jan. I've cancelled the contract 3 times with confirmation.. but kept getting debited. Now when I throw a fuss it's in "processing" to get cancelled.. and I've gotten 3 more calls from vodacom to sell, sell, sell .. because that's what you do when you are allergic to someone saying "put me on prepaid my contract is over" VODACOM you will keep clients when you respect them and are ready to serve and give what they need... it took me 1 day to open a contract 100+ to close... my request does not feel respected.