Poor Service!

I app**** for a credit card via telephone on the 02/11/2015 and I was approved after confirming all details I was to send a few doc's to my card applications after sending my documents twice I got worried and called I was holding on endlessly because they are forever experiencing high call volumes after getting through I was told my application was expired, I done another application thereafter and again was approved the credit letter agreement form was sent to me to sign but all my details on there was wrong (My name, surname, address.) I then went to the branch Randpark Ridge (13/11/2015) the consultant sent an email for them to rectify the incorrect details it has been almost 2 weeks that this application has been going on and when I try to call the lines are still busy and no one has emailed me the correct details from card division as yet! It is very frustrating waiting for something that just never comes...