Vodacom has no customer care at all only care about the upgrade no after sale assistance

I have done an upgrade on black Friday last month it has been close to 20 days now that i have not received my 50 gig promo Data that was advertised i have logged several calls and no one seems to know about it or wants to help doing upgrades because of something advertised should be sorted out as quick as possible and not delayed and get told we cant help you whats the point in having a customer care center if they don't want to help or be bothered to call you back to inform you of the progress