NEDBANK 'Service' incomparable

Nedbank have charged 'Service fees' on my account, which they say is a card-renewal fee for cards that have not been in use for more than 10 months where the linked accounts have been closed, as well as 'Maintenance fees' on an overdraft facility which has already been cleared. It's impossible to get answers from them or the fees totalling R748.00 reversed, as requested. Nedbank also has been sending me a blank statement on an account which no longer exists for approximately 14 years - even though I have tried to get them to stop sending these blank pages. And they call themselves 'The GREEN bank'???? I had been a Nedbank client for more than 30 YEARS! Luckily, I am moving to FNB - but Nedbank doesn't care one bit. They simply deduct their 'fees' and as a customer, you can get no 'service'.