Thanks brigadier. I don't know the exact amount, but it must be under 90 pounds. I recently got my credit report from checkmyfile.co.uk (which claims to do a multi-agency report), and , apparently, on my Equifax file there is a credit history with a 'Comunications Supplier', where last 4 months are in arrears, (can only be my old Orange/EE broadband service which I terminated last year). I'll be getting the real Equifax report next week and come back with the details, but I suspect EE tried to debit my bank account for 4 months after I cancelled my DD.

I'm in almost exactly the same situation. From what I've read online, it may be wise to appeal for sympathy since it's an small amount. You may have to be persistent though. Any response back from Orange?