Poor service

I had a contract with Mr Price mobile I was receiving airtime and they have converted my MTN sim card into a contract sim. My sim card was not working for 2 days I called their customer care on the 07.09.24 I was told that the contract ended that is why my sim card is not working I have to wait until 09.09.24 to be assisted and to my question why they didn't let me know before they cut my line without my consent? What it I wanted an upgrade? Their services is very poor I would like them to cancel their airtime and put back my sim as a prepaid because it's clearly they don't care about their clients.