Wesbank processing debit order to a paid up account

I paid up my wesbank account in November this based on a settlement amount wesbank provided...even received my enatis form back..delivered by wesbank yet on on 20/12/2020 they process debit order to an account that is already in credit..i wrote to them on the 21/12 asking for this money to be reversed back into my account...they rep**** that this cannot be done as they do not recognize my email address...even though the request to reverse was made online behind login...do they not trust their own login authentication???I know times are tough but for wesbank to hold onto money taken *******ly is just not on...i would really appreciate that these funds be immediacy reversed and this account closed permanently...i dont like the way you are operating and doubt i will return for a service from wesbank in the future........