Don’t know how to get Account closed!

I have been emailing back and forth with the call centre to try and lose this account for over 3 months, and it still has not been closed. They told me I needed to deposit money to close it, not telling me how much, so I went off my most recent statement and then I was told I hadn’t deposited enough because although the statement showed me as haven’t over R50 in the account, on their end there was a negative for some reason, so I deposited more money, when hey told me they would close it. When I received another statement the following month I emailed again and they told me I needed to do a transfer from my end from the savings to the main account, at which point I told them I don’t have access to the account as I haven’t used it in years and it was suppose to automatically close when there was no more money left and not go into a negative like it did. A this point they said they would send it off to be closed, however I received and another statement this month showing that it still is not closed and that the account fees are still coming off of the account so it will end up going into a negative again, despite me sending multiple emails and two transfers to get the account closed! They have closed most if not all of their branches and the only way to get this resolved is through email and sitting on the phone with the call centre, which seems not to be working. This account is just being a drain on my money because I cannot use it as there are no branches and little to no ATM’s and it is just an inconvenience and now it is even more of an inconvenience to get it closed!