False Adverti*****t/Poor Customer Service

I have never been this disappointed, I took out a contract on the 21.10.22 at an MTN store in Chilli Lane, there was a promotion in the Oct 22 Catalogue for the Huawei Nova 9se it included the Huawei Band 6 free, so when I collected the devise from the store they had advised that the Band needs to be claimed from Huawei, I did contact them and they came back and advised that the promotion was for MTN so the Band was supposed to be received in store with the devise I then made contact with the store they advised that they will check and advise they then advised that they had escalated the matter to their head office till this day I have not received the Band, on the other hand they registered an incorrect number they inserted one digit incorrectly so basically I am not even getting the airtime as per the contract so I have tried calling them a number of times no one from the head office is able to assist they have the most poorest customer service never will I recommend any one to use the network as they don't care about their customers and I have made it clear that I will not pay I will only for the amount charged for the devise since it's the only thing received from them