SHOCKING SERVICE FROM MTN YET AGAIN

I did an upgrade on the 19th July with MTN to the Mega Talk M package. As a special offer they advised that for R30 additional I can get a Data only card with 10GIG data per month. I accepted the offer but after a months picked up that I am not getting the benefit. I sent emails to the customer service desk and was advised that I need to have the data card registered. When they offered me this deal and sent me my phone there were no instructions that this was to be done. When I called to get the card activated the first person I spoke to told me that the deal was cancelled and the card de-activated and put me through to someone else. The second person told me that the card was activated but was not aware of any such deals being offered by MTN? I asked them to investigate and was given a case nr. They then told me that I need to call the ***** dept. I did so and was told that they do not deal with that sort of issues and that the case number does not seem correct as that is not the normal format for case numbers MTN uses!!!! I spent over 50 minutes trying to get this sorted but have been run around from person to person and basically have zero results! UNACCEPTABLE