Retrenchment Claim half paid

I am highly disgusted and disappointed at the level of service received from this bank. I got retrenched in May and submitted my complete documents in June ( this was also a struggle as it took me walking into a branch to get my documents to the head office as "they were always incomplete when I sent them"

I got confirmation on the 23rd of June that the claim is valid.. Mind you I still paid my full instalment in June and July..

The claim was paid on the 28 July but not dully paid as I have an outstanding balance still which I don't understand why its there..

I have been with you from 2014 and never missed a payment.. Now there's an outstanding balance.. Who must pay that when you have all my retrenchment documents and well aware that I am no longer working??

Please wrote off that balance... I am not even going to get in to how unprofessional and rude your call center agents are... They are just appalling.. ***