The actual Meaning of customer care

F.N.B.= FUCKING NO BUSINESS SENSE
Its clear to me that banks don't know the meaning of good customer relationships.
F.N.B. ,its real meaning: FUCKING NO BUSINESS'S SENSE, sent an S.M.S to my wife saying she was pre approved for a two thousand Rand overdraft account and all she had to do to get it going was open the account with a R100.00. She did this and found out that she now had to apply for the overdraft. With this she decided that they had misled her and told them that she was going to close the account after one week because of the misinformation. When she closed the account she got R65.00 back. So F.N.B made money on their screw up. The other day F.N.B. S.M.S her again to say she has been pre approved for a Thirty Thousand Rand loan , so she phones to confirm and they say yes all they need is her I.D. and it will be done. Well a week later she has to phone them and is told "sorry we can only loan you seven thousand Rand". Wait a second but she was pre approved for a thirty thousand Rand loan. Am I wrong is this not false advertising and can nothing be done about this? Anyone with feed back or other complaints please tell me. Can I not go to an Ombudsman about this?