Very Poor Service

i have 2 contracts with Telkom and 1 was ending in July , i went to the store in Stanger to cancel this contract and was told that i must cancel it in July . when i called the call centre the advised me that the store gave me incorrect information and they gave me a cancellation documents to fill, i filled it and sent it on 1 July 2015 and was promised that i wont be debited. i got debited in July and august. i phoned the call centre now and was told that the contract was not cancelled by them. and they will look into it, what nonsense is this. i will definitely not be doing business with Telkom again.