False Advertising total *******

So it was black friday, there i was all excited for the deals i will get with MTN. Yeah right there was an advert in one of their franchises of 40gb with of data including a router. What a deal wouldn't you think. Only to be ripped of like this its unbelievable. They are only giving me 5gb per month i have been trying to get them to correct this with no luck what so ever. Honestly im so disappointed in them coz they have been my service providers for a very long time and i expect better from them. Talk about false advertising.