Offered a settlement and still messes up!

I hope this is the last time I have to do this, but it seems like posting on a platform like this is the only way of getting proper assistance.

My account ending 6001 had a balance of R5251 at the beginning of June. I was offered a settlement discount of R3413, which was valid until 30 June (I still have the settlement letter)

I called during the month to ask if the debit orders can be cancelled, which I was told it cannot, because I intended to pay the the R3413 before the 30th. On the 26th, I had a double debit of the normal debit order amount. I called again and they asked me to go to the branch, so that the branch can reverse the debit orders and take the R3413 from me OR deduct the two debit orders from the R3413 and have me pay the difference in order to close the account.

In the branch on Saturday, 28 June, I was told only one debit order could be reversed and that you will refund the other at a later date. Today, both debit orders and the amount I paid to apparently close the account shows but the account still has a balance to paid, which should not be the case as I paid the settlement discount amount and then some.

Now, I need the additional debit order reversed because you now have R2770,09 + R642,91 + R642,91 - That's R4055,91 you took, instead of the R3413 I was offered to pay and you STILL did not close the account as you should have.

I will use my business account on Linkedin next if this is not sorted today.