Payment Allocation issue PNP Store Card

On the 2nd of August 2020 i made a payment of R1250 to my PNP store card using the Easy Pay number provided. I had used this same method countless times before without any issues but for some reason over 6/7 months later i am still fighting to get this payment allocated.

I have emailed bank statements and proof that the money came off my account, spoke to multiple call centre agents without an end in site.

Every month i am being charged interest because you have not allocated my payment. Who is going to pay for this?