Still being billed for a contract that I cancelled

so I have couple issue with MTN. To start off with I cancelled a data contract i had after the 2 years. I still had to give months notice. it is 4 months later and i have logged 3 separate tickets with MTN but they are still billing me.<br> Why should I have given notice in first place if it is a fixed term contract? no feedback in 3 weeks since my last query. <br> My second problem is I did upgrade month ago, after the consultant messing up the delivery at MTN direct, I had to wait a another week for my phone to be delivered. Once I got it the sent a pink pouch with ? I have logged 2 complaints still waiting on the correct pouch to be delivered. <br> Since i have done the upgrade my number is on private number and they are not able to sort this out. <br> <br> I am so fed up with call call center and explaining my self over and over and getting new reference every time and still they cant give me my credit and cancel the contract. Literally MTN is *****ing from me R95 a month.