Poor service - 3 incorrect upgrades

I recently upgraded or attempted to upgrade 3 MTN contracts, 2 months ago. All upgrade requests were done incorrectly. I reported this to the customer services email provided for complaints, six weeks later and I have received no response or acknowledgement from this department. I'm unable to get any concrete feedback from anyone whilst I sit without my handset and other services and a billing invoice that is charging me monthly.

1. One number was incorrectly turned into a "data only" number, after explicitly expressing the fact that the number needed to be able to make and receive calls. 2. One number I had put a cancellation notice on was incorrectly upgraded. 3. The incorrect upgrade above which was meant to be on a different number came with a handset. As the upgraded nr was incorrect they needed to collect the handset in order to correct their mistake. The collection took 2 weeks and it has been 4 weeks since the phone was collected and still ,radio silence, no one has contacted me.

This poor service has been utterly disappointing and frustrating.