Contract Upgrade

I have been a client of MTN for many years and had no issue when it came to upgrades etc. Unfortunately, this is not the case anymore and I am at the point of canceling my contract when it expires this year. I submitted my request for an upgrade in November 2021 and the upgrade was approved on 27 November 2021. Since then I have had no contact with MTN and when I do contact them it is endless frustration to speak to someone that can assist. Again this morning I tried to contact MTN at 135 option1 and had to stay on the phone for almost 15minutes unable to speak to anyone. Thank you MTN for your support over the years but time to move to another service provider.