Incorrect Billing and Cancelling Contract

December i was suppose to cancel my contract after a full 24 months of bad service. December on the 29th i went to cancel at the store which nobody informed id have to the contract department to cancel, the person assisting informas that they had sent a request for cancellation which turned out to be a lie as it was still open, beginning of January i called and cancelled again and i thought they did, towards end of January i called again and was told that no request appears for cancellation and that it was still active of which i cancelled again for the third time now. Beginning of February i called to find if its been cancelled and told then that i cannot pay another month for this and discovered it hadnt been cancelled yet and again i cancelled. Mid February i called and still the contract was active and cancelled again and eventually it did and the gentleman tol me that should i be billed they will reverse it as this was not my fault. Today 01/03/2016 i aam billed and nobody still is able to give me straight answers, what sort of imcompetence is this, instead i am sent useless emails and now all of a sudden none of the consultants can put me through the Contracts Department?????