***** itc customers for nothing

Good day

I never had aby debts in my life i did open an acc with lewis stores in july 2017 my first instalment was in september wich i did paid i am nothing in arrears on saturday 28 October 2017 i did found that lewis stores put me on a red list for bad credid how is that now possible i even got my proof up to date when i paid and went twice to my work for money i am anger and upset now i cant make a living with a bad name but i must finish paid i pls want answers urgent!!!!