Struggling to get credit cleared from my profile

I am trying for the past 3 months to get an account of my name by Experian. Ive called numerous times and also disputed on the My credit check profile, up to date this account is still showing on my credit profile and nothing is being done. I called and was told to email the paid up letter and still nothing was done.

My credit profile is being affected negatively but what do they care. Everyday I must call and ask and its the same story every time