TERRIBLE SERVICE BY NEDBANK

I have had a Go Banking account with Nedbank since around 1998/2000. However in June 2019 Go banking does not exist any longer. I was not notified and my account was just changed to a transact plus account. I called in and changed my account to a savy Plus account with a monthly fee of R110. However they have never charged my this R110 but R416.50 and over. I called in July 2019 and a lady Nazeera assisted me said she will get back to me and nothing occurred In October 2019 I went to the Centurion Nedbank only to be told that only the call center can assist me because they changed my account to a Savy plus account (this is after waiting with a ticket for half an hour. I called the call center again and was assisted by a lady by the name of Tando who actually refunded me for the 3 months that I was incorrectly charged. Nazeera thereafter calls me (note: 2/3 months later) to confirm that she will keep my details and check that this incorrect fees are still not charged to me. However in October, November and December 2019 the same thing happens I am charged R416.50 and over for service fees instead of the R110. I even got an sms in December 2019 from Nedbank stating that my savy plus account will be charged R110 from Jan 2020. I tried calling the call center on numerous occasions and they always busy and I really do not have the time or energy for this wait. Today I called the call center again only to be transferred to 4 difference people and give my details and whole problem to every person and they push the call to someone else. I have now spoken to a friendly gentleman by the name of Phumlani who gave me a reference number ***8 saying that a case is opened and the matter is escalated to his team manager. Now I wait to see what happens next. 6 months this issue has been going on and nobody can solve the problem. Just charge me the correct amount for a savy plus account is it so difficult. I am not a new customer and I have never had issues with Nedbank until JUNE 2019 to date. Please just refund me the additional money you keep charging me and update my fees for a Savy plus account.