waste of time banking with nedbank

I have been banking with Nedbank for the past 8 to 9 yrs. My salary is paid into my cheque account. I have a good credit score and affordability yet this is the only bank that hav refused me a credit card or overdraft faciltity...i hav app**** online only t asked to send docs which i did..thereafter i receive an sms stating i hav been declined...i call to enquire and the reason is that i havent sent docs...but i did...they advise that i should apply in th branch...i go to branch apply. Hav th consultant call me next day and say it needs to be done online n submitted via email...i hav sent numerous mails and made calls but stil no help...they keep declining me and messing with by credit score...its strange that th bank i use and my salary is deposited in cannot give me a credit card. Yet i approached other banks and have not been declined.i even left a complaint on th websit only ti get a reply stating i dnt meet the credit criteria.....i am seriously considering changing banks...