RAGE MESSED UP MY CREDIT SCORE!!!!

I have been paying my Rage account but rage didn't clear it, I have noticed when I received a call from them asking me when am I gonna pay my account then I went to them 16 Jan 2020 to dispute the matter when I left the store they said they will sort out with the head office. Then I noticed when I wanted to open an account with another store I got rejected, when I checked my credit it was rage that i haven't paying for 6 months which i was paying, I AM ANGRY because of rage, my credit score is false i have never experienced such incompitancy. Rage how do you run your business? You take my money and **** up my credit score. Sort this out or will take this matter to my lawyer!