Poorest service and impacting my financial status negatively

I qualified for a credit card with Capitec in 2018. Due to some financial set backs the credit card went into arrears and was listed on my credit record. I was able to receive a settlement amount in January 2022 and I paid the full amount.It has now been a year of me sending them the paid up letters and proof of payment but still it reflects as outstanding on my itc credit record. When I phone them they are unable to help and when I went to the branch in Lydenburg I was informed that it does not show on theor system however ot reflects on their forensics department. This has had a tremendous impact ons my financial choices and has been the biggest hurdle to overcome. I am so dissapointed in the lack of service and help for the past year.