Poor service one too many times

November 2014 I informed Nedbank, N1 City, Cape Town that I was leaving for the UK for 2 years from January 2015. They were unable to give me a new credit card in January as my current credit card was only expiring in April. I gave my mother signing power so that she could manage the acc. from S.A. They gave her grief when she tried collecting the card and now my internet banking has been suspended.I phoned customer service, they kept me on hold for so long that my ?10 calling credit was used up and I had not even spoken to anybody regarding my query. I have even emailed their customer service facility and have not had a reply. The service is absolutely shocking and if this problem is not resolved ASAP I will be closing my Nedbank account.