In need of paid up letter

I was contacted in February 2024 regarding outstanding Truworths account that was handed over to them. I requested their banking details, reference and amount to pay on 7 February 2024. I made immediate payment on 7 February 2024 and emailed them proof of payment. I have not received paid up letter. I then requested proof of payment on 6 September 2024 and 16 September 2024 again. Received email on 17 September that they have escalated to relevant department. No letter received, then I have emailed them again on 23 September 2024 for update, then received email 25 September 2024, advising that they have escalated but no paid up letter as yet received. Then I made a telephone call for follow up on 2 October 2024 to check on progress now they say they are awaiting letter from Truworths, and call centre cannot provide turnaround time. In the mean time I am being harassed by Brooks Luyt attorneys as Truworths have not received payment and the Brooks Luyt Attorneys is in need of paid up letter before they will stop calling me and this reflects bad on my name. Im really frustrated at this stage with Easton Berry Attorneys for not providing letter since February 2024