Frustrated

I initially disputed the following account enlisted by Nimble (Account No: 10140***X) and submitted all the required information. The auto-response indicated that the enquiry would be processed within 20 days, and the confirmation was in my favour. Nimble refuse to remove the account and clear my name. The email indicated I would need to wait up to 48 hours to apply for credit which I abide for 2 weeks and upon applying for a HOME LOAN I qualify