Account closed but still being charged

<p>So last year i have switched banks and closed my nedbank account Via phone call. Jan 2017 Nedbank phoned me and said that my account is in overdraght, once again i made them aware that i do not use the account and its suppose to be closed down, Feb 2017 the phoned me again saying that my account is overdrawn and again i stated that the account is suppose to be closed. Today a rude unprofessional lady phoned me demanding payment , the more i explain the situation the more rude she gets by saying where is the proof. How many times are you suppose to close down the account before it is accauly closed?????</p>