MTN’s Bad Service

Hi i have been a customer to MTN for 24 months,I had 2 contracts with them which ended on the 8th of July 2021, so I did not cancel the contracts I telephonically upgraded to get a laptop and an iPhone,the agent who was helping me said she will call on the 9th July 2021 to finish the upgrade till to date she hasn’t called.. I received a a message that my laptop is pending because of documents so I decided to call.. I call everyday 3 times a day only to be told the agent who initiated the contracts is the one who should help me..then they send her an email cc her supervisor to call but she doesn’t..till today I don’t know what is going on with my laptop.. on the 19th of July 2021 I received the IPhone without the laptop so I called only to be told the same story then the agent hang up on me..please assist as I don’t know if I am going to get my laptop or not..