Diabolical service and lack of feedback !

I received a message on the 29 July saying that my Credit Card was ready for collection. I tried twice to stand in line which extended into the car park and was told that even at age 64 I must still go to the back of the queue so I left.I then called the help line and spoke to 5 different agents on different days, with no result.(I have the names) I lodged a complaint with their complaint line....no response. I reviewed on Hello Peter on the 4th August and got a private message saying I would be contacted. No contact was made. I reviewed again on the 11 August and finally got another private reply saying that I would be contacted,which eventually did take place. Cresta Branch finally contacted me today and arranged an appointment for 1400. I arrived at 1355. Eventually I was allowed in the bank whereupon I waited exactly 60 mins. There were 7 people ahead of me and by the time 60 mins had passed there were still 4 people in front of me so I left. I cannot understand why there has to be so much inconvenience when all it takes to collect a credit card is probably 2 mins. I mailed the agent back twice today, requesting that he contact me, but no reply.The staff attitude was also very apathetic which didn't help matters either......so where to now ?????