Ever heard of a 27 month cell phone contract before?

I upgraded my Telkom Mobile contract on 14 August 2016. This is a 24 month contract which is supposed to run until 13 August 2018. After calling the useless Telkom contact center and going to their branch in Tygervalley centre, I am told that my contract will only expire in November. This means my contract will now run for 27 months instead of 24. I have an online telkom profile which states that my contract ends on 13 August 2018 but the idiot at the store, after pulling up my contract on his system which shows the correct date, just said there is nothing he can do about it. The contact centre agent refused to call his manager to the phone. There is no complaints resolution process for this useless company either cause neither the branch nor the agent could give me a contact for the complaints line. I am definitely stopping the debit order on this useless company at the end of September as I only owe them money up to August as per my contract. I will also be taking this to the consumer commission because ll they going to do is give me a reference number never to hear from them again. They have ****** money from me before, they will not do it a second time.