7 Weeks for a credit card

On about 2 February 2015 I app**** for a Titanium credit card at Cresta branch and was assisted by Portia. I was contacted a day or two later to complete a re-activation form for my old card. This I did on the same day. I then followed-up with telephone calls (you can't get through on the phone) and an email but had no response. On Friday 20 March 2015 I went into the branch and was told the card division lost the application and she had re submitted it and I would have an answer by Monday 23 March 2015. On Wednesday I emailed her and was then informed that I had to re-apply with new payslips etc. If my application can't be handled effectively why must I now re-apply when she has a copy of all the original documents? I understand some of this might be a fault of card division but how many times can they lose my application. I'm really disappointed in the treatment I have received from Cresta Branch and Card division.