Poor service from Vodacom

On the 1st of August I cancelled contract with Vodacom. Then i took a new contract one To my suprise i notice my debit order was more i called on the 20th October ask why. Consultant told me i have 2 active contract. The 1st one was never cancelled . She open escalation for investigation to be done to check why my contract wasn't cancelled and if so i need to get refund. After 2 days i received SMS confirming my query was closed but i dont know because no one called or no feedback was received tht my query was resolved. I called vodacom again today they say contract can only be closed 27th October .which i believe it need to be closed immediately since i have called for this 2 months ago. Whn i asked for my refund consultant transferred me to billing department however i couldn't get through whn i enter cell number in question it say the number is not in arrears then no further options to speak to anyone. Im frustrated i can't afford again to call and being transferred without any getting assistance .i need my old contract to be cancelled immediately and get my refund for 2 months