Vodacom is the worst...

Vodacom the worst. They promised me a promotional 5gig for 24 month when I upgraded on the beginning of December last year. And not yet received that 5 gig from then and I went to the nearest Voda shop but still the problem is not resolved. So as soon as my contract end I'm leaving vodacom for good the worst service ever... Seems to me that they are ****** very disappointed...