MBD Useless at resolving an over 1 year matter

Ref ID ***/ MBD -*** It is now 2021 and i am still stuck and begging Woolworths and MBD i.e with a matter of a statement that does not reflect one of the payments made in May - i.e 16 May 2019. Can that be counted in so that i can get a settlement letter please - i don't know if the amount is seating with Woolworths/MBD but can this please be concluded as i am tired of the mary go round and have no money to waste on duplicate payments.

I have paid amounts of:

R5000 on 16 may 2019 R5000 on 21 may 2019 R10000 on 25 june - once the payment were made , i requested a final balance statement and settlement letter. No one bothered to respond and now i am being called by MBD ***) again.

I have been trying to sort this out endlessly in the past year but MBD keeps on telling me to pay whilst disregarding my previous payments. Can someone get to the bottom of this urgently. Failure to this i will have to refer the matter to the ombudsman and legal route.