RCS - Bunch of discriminating fools...

Went into Dion Wired on Saturday 5 March and app**** for Dion Wired (RCS) Card. After a very tedious and time consuming application process, my forms were submitted and I was notified via SMS later that day that my application has been approved. I went back the next day to sign the quote and collect my card, only to find that they only offer me R7000 credit. I told them to cancel everything. What strikes me as very pecu**** is that they gave my sister (who earns 5x less than I do) a card with R25000 credit. Obviously this is based on my past, where I got very indebted and had to go onto Debt Review. I have since paid off everybody and went to court to obtain a court order that states I am no longer indebted or on the Debt Review process. I submitted this to the 4 big credit bureaus and they are satisfied with it, so much so that my bank has now given me a Platinum Credit Card with a R50000 credit limit and a overdraft on my cheque account, with no issues at all. But somehow RCS thinks that I am not good enough, obviously discriminating against my credit history. I complained to them directly first, but it has been 10 days, still no reply. I am taking this matter to the NCR.