Pathetic service

Got offered a FNB connect sim card in the N1 City Branch got told about all the benefits but not the downfalls of it which is against the consumer protection act by not informing me about the product in detail. I then called in to the call centre to have my problem reslove and it still hasn't and its 8 days later. I work in the vehicle sales field and my customers is unable to get hold of me which has a direct impact on my salary. Im disgusted by the pathetic service and ETA's on resolving my problem.l've been unable to do my work for 8 days and have been calling there call centre atleast 4 times a day and its still not resolved. A team leader in there department by the name of Marlin has promised to call me back and resolve my problem but he doesn't uphold his word. Everytime I try calling into the call centre and request to speak to him he's never available to speak. Really I'm extremely upset about the service recieved from one of the 4 major banks in S.A and have suffered a heavy financial blow due to this. I'll from today always speak bad about FNB and will never recommend anyone to bank with them.