10 gig free data when doing a update not correcly recieved

<p>We do i start this is dragging nearly two months i did a contract upgrade but never received my fee 10 gig data ,phone them ,and got a ref Ref 1- ********** 7823 were they say the will reimburse the data but to this day they have not manage to do it but add 10 gig to my account for r399 which they deducted as min 10 Gig for R399 then they added 10 gig which they charge R599 gig (also did ask for this ) and I still not received my additional reimbur*****t and every time i phone the customer centre i must get transfer to solution department spoke to sandy and Palesa and a bunch of other which promise me they will phone me within 48 hour but you never get call back from them just cost me again phoning them to give them the whole story from the begging ,Can this please be sorted from once an all ,never has such bad service from vodacom in my life and my bill just get high every time they add data on which i didn’t request </p>