Breach of contract

I took out a contract 2 years ago which stated that the term is 24 months, the contract which I signed stated 24 months, as well as the invoices, received stated 24 months. I contacted your customer service dept and spoke to Puleng who had advised me that this was now showing 36 months yet when I called at the very beginning I was told by the consultant that the term is 24 months. I forwarded the invoices as proof that stated the contract term and received a,Ref no: ***. It's been 5 days and I have not received any feedback even after sending emails requesting an update! The contract should have ended in May and another debit order has gone off today. I await a resolution as someone on your side cannot rectify their mistake thinking that the customer won't notice another year of paying for a contract.