MTN *****

An upgrade was offered to which I took on 17.03.2020 To date, I have not received the promo that goes with the package. I went into a branch on Sunday 28.06.2020 and the assistant logged a ticket. I have not heard from then even though I was told MTN will contact me within 48 hours. Today I contacted them and no-one seems to help me. I have spent most of the morning calling so many different numbers and still no help. After been with MTN since 1998, this service is despicable. I have held on to the retention's department for over 30 minutes and no answer.