Terrible service

I am having such a issue with Mweb, I ordered a Fixed LTE package and the sim was registered incorrectly, so I had to order a new SIM , so now my account has 2 LTE packages attached to it when I phoned to cancel the LTE package which had been rica incorrectly they said they will cancel it in a few days(that's a week ago), my other LTE package has stopped connecting to the internet for a week also and yet I am still being billed for both and when I log a query I get no response and when I call they take forever to answer which costs me alot of airtime