Disgusting services

I have recently upgraded my contract with MTN and took the Huawei P30 lite New Edition 2020.When I set up my phone and went through the camera features it showed me that the front camera had a 24 meg pixel camera whereas the 2020 edition is meant to have a 32 meg pixel camera. I took the phone back to MTN and they sent it in for a warranty claim. It has been almost 3 weeks and I am still waiting to get my phone. I am disgusted by the type of service. I have asked that the renewal of my contact be cancelled but the store will not do that (mtn meadowdale). I believe that I have given them enough time to resolve that matter and I am tired of continuously having to ask them what the progress is.If the matter is not resolved by me getting the correct device or the renewal of my contract cancelled,I will be logging this with the Ombudsman. I am not sure as to how MTN failed to see that the devices they are providing clients fail to meet the product standards and I am not sure how many client have been these devices.