not happy with nedbank

i am so angry with nedbank, i have an account and i asked for my account to be moved from proffesional banking to retail banking because the service was pathetic, i then app**** for an overdraft facility and now suddenly my account has been moved to private banking without any authorisation from me , that means they have been charging for the services that i never asked for i am now being told that my private banker is sitting in sandton and mind you i have never even met him nor has he ever introduced himself to me, his name is Aubrey Modise. i want nedbank to move back my account to retail i dont want private banking , i have tried to ask for assistance from woodlands branch and the proffesional bankers and they refused to assist me , one of the reason i changed my account to retail banking .i now have money in my account that i need to use to pay the builder and they are telling me my account has an error .