Bad Service-Upgrade

I’ve been wanting to upgrade my current contract and contacted MTN in which I was directed to any of they stores as they couldn’t offer the Sky package I needed over the phone. On 20 June 2019 I went to the MTN ****arney mall store where I was helped by an unfriendly consultant by the name of Khanyisile. She just offered me a booklet and never bothered to explain anything in which I was asking questions which she was reluctantly answering. I then signed for an upgrade and asked how i’ll receive feedback she told me she’ll contact me. I insisted on a number to call back, she gave me the *** which I’ve been trying without success. To this day I haven’t had a word from MTN. She didn’t even provide me with a reference number.