Nimble not clearing my name - Account Settled

Good Day, I have been handed over more than a year ago by Home Choice. Nimble Group / SSDA . I received a settlement letter and paid my account up in 3 days. I received a paid up letter and now (8 months later) my Home Choice account still shows outstanding. I have been sending emails to Nimble/Home Choice and SSDA, As per SSDA Nimble is responsible for clearing my name but this is not happening. My Home Choice account shows in arrears on ITC and on Home Choice