Treating Customer Fairly

Woolworths store called me last week sometime to offer a credit card, was pre-approved telephonically. Documents was requested and sent last week, the verification process showed received and finalising. The store I selected was Mall Of The South, bad choice. They had no staff available at the finance counter and could not assist because of *****. I then received a sms advising that documents were outstanding. Finally sent all required documents and they have approved the application. I decided to call the number given to confirm details. I also wanted to change the branch. The call centre advised that this cannot be done as there is no way of changing the original branch. I requested to speak to a manager and got Mohammed Kassim a team leader to assist, but was of no assistance. He confirmed that nothing can be done for the application and the branch cannot be changed. A huge organisation like Woolworths cannot change an application, had to believe. I would like someone to assist.