MTN app and call centre can't assist to upgrade my contract

I have been trying to upgrade my contract with my MTN app as well as the working with an agent to finalize the upgrade. App submission email confirmation was received on 12 Jan with reference ***0. In the meantime I was in contact with Peggy Serwalo on email to get feedback. Last update was that there is a stock problem but they should have gotten stock by last week Friday. I asked in my email last week that I would appreciate feedback by Monday(18/01/2021) as I am getting frustrated. I did not hear from MTN yet. I have been a customer for at least 8 years. This is not acceptable. I am going to cancel all my contract as they expire. Please note I actually tried to call the MTN service department and I was told they can't assist me because it is an App Order. That is really pathetic. How can your client service department not sort out app orders or check what is going on on my profile. I am really disappointed in service.