Incorrect contract terms

A year ago I had ownership of a Telkom lte data contract transfer from a friends name to mine. I recently found out that the contract had been loaded onto telkoms system as a 5 year contract and not a 2 year contract. When I looked at the original contract it said 2 years. When I went in to the Telkom branches nobody seems to know how to rectify this problem without restarting the 2 year contract from the beginning. I have been to the Telkom shop in Menlyn mall and they gave me a case number ***1of for a complaint logged on the 1st of February. Telkom has still not contacted me to resolve this problem, but instead on the 6th of February I received an automated sms saying that the query has been closed without anyone contacting me to let me know if the problem has been sorted or not.