Bad consumer service

My greetings.

On the 28th of April 2023 I've paid an amount of R200 instead of R180 at Fabian store in gateway mall. My account was opened at American Swiss store in gateway last year September. I was advised to pay by American Swiss store to pay at any store of their group. Suddenly since from the 3rd of this month I've been receiving calls and messages from foschini credit department telling me I'm on areas. I told them I've paid... they asked for proof of payment and I went to American Swiss gateway and provided the store with my ID copy and proof of payment and they said they'll email it their head office. To my greatest surprise I still receive calls from their rude staff members who instruct me to go to Fabian to trace for proof of payment because mine has faded. My question is that because the proof can be traced from Fabiani as it is their store group why can't they trace it because the date and time is clear enough they tell I must drive to gateway to do that off which I won't because it's expenses that I must encounter. I stay 60km from the store. They are busy adding interest and SMS cost on my name off which it's their fault that affects my credit record on the berue. At foschini gateway I was assisted by the Indian guy buy the name of Shaun and I believe he never fixed this matter as I still recieve irritating calls from their rude consultants. I therefore request hello Peter to intervene in this matter as I feel foschini group is abusing their power of being the credit provider.

Kind regards LINDOKUHLE Ngwenya ***