Still waiting for my 20GIG and 1GIG Free Data

I got 2 Seperate sms messages to get my sim to get my Free 20Gig and 1GIig Data, Went into a Branch in Bellville, Johan hartset assisted, told me oops,. I cant Issue you the SIM as you have a Negative Balance in your Account, I left feeling humiliated as FNB made changes to my account and cause charges to go off. This after I confirmed with the Callcenter a day before and they said should be no problem, I can just pick up my sim, wasnt the case. Few days later got my sim at another FNB Branch , told I will get my Data loaded in 2 Hours, oops, nothing, What a lie. Callcenter told me I must wait 5 Days, but they cant send me an sms to re-assure me that this is going to be loaded after 5 days. I am still waiting, Where is the 20GIG and 1GIG Data you promised me....Or is it just a lie for us to get FNB Sim Cards.. please advise, Very unhappy.