Fed up and fleeced

My wife had a contract with Cell C which concluded about 2 months ago, the problem with this is I believe there had been miscommunication as to when exactly the end date was, <br> <br> Cell C debited us for the benefits of this disputed contracted and we reversed those debits, now they handed us over which is ridiculous, now the most irritating part about all of this is that we were further billed for a contract we did not want.<br> <br> We would like to conclude this matter by settling the account but are not willing to pay for a contract that we further made clear we did not want.