WiFi part of package not usable

I've been a very happy Telkom customer for almost 2 years, but recently Telkom have made a few fatal mistakes, which I can not merely overlook.<br> <br> Firstly they advertised a product, only to find out that the actual product offered is NOT AT ALL the product advertised. This is false advertising, and you should not merely apologise for it but deliver that which was advertised!<br> <br> Secondly, I have two Telkom mobile data contracts, both with the WiFi package (10GB), but now suddenly you are no longer able to access the 10GB data. So besides it appearing as being available, there is no way in the world to access that service. This is completely unacceptable!<br> <br> I would like an explanation for one-sided changing of terms of a contract that is suppose to be mutual.