ABSA Trying to suck money out of me

So I used to be an absa customer ever since I was in high school throughout varsity and till I started working. I then realized that the fees had started becoming ridiculous and started looking for another bank which had much reasonable rates.

I then changed banks and requested that absa close my account as it had been dormant and not being used for a while. They then told me that I needed to pay the arrears balance before I can close that account. I went and checked that balance and they had basically been charging me bank charges which amounted to R2009 even though I hadn't been using that account.

I eventually deposited R2500 in March into that account to get it closed so they took their 2009 and I withdrew the rest. I then proceeded to giving them a call and notifying them that I want to close the account. They told me i'm not able to close the account over the phone and I needed to visit a branch. I told them at that moment i'm not able to go to a branch so is there a way they could escalate the matter so my account doesn't continue charging rates till i'm able to get it closed. They gave me the run around for a couple of months because I didn't even have a proxy nominated on that account so I couldn't send someone to close it.

The call center agents were very shrude and weren't even trying to help me as this was beginning to hinder me. Only to check in the following month that this account was still being charges. So I continued calling them asking them to close this account as I had paid the arrears and wanted nothing to do with absa.

Then last month they handed over this account to MBD and they told me that I owe ABSA R900. This came as a shock to me because they told me that ABSA closed my account and handed it over to them but I was told that my ccount could only be closed by me going to branch.

I sent MBD the necessary information showing the deposit and remaining balance, yet they still call me daily disturbing me at work telling me that I owe ABSA. This is when I realized that absa is just trying to suck money out of me for nothing when I actually didn't want to have the account anymore. So they stalled me so the charges could accumulate then they come after me claiming I owe them

MBD aswell is not being helpful or trying to investigate this and I really don't know how to deal with this because this is *****ing my name and i'm a young professional trying to build a life for myself and such bad records on my name is hindering that.