You will need to contact Legal Direct Recs.
CREDIT CONTROL MANAGER, LITTLEWOODS FINANCE COMPANY, AINTREE
INNOVATION CENTRE, PARK LANE, BOOTLE, L30 1SL
If you are completely unaware of any debt owing to them request a complete
S.A.R. LETTER HERE
this is a full statement of the account which they charge £10.Adjust letter to suit.
DO NOT SIGN IT
Once you have this info you can evaluate where you stand. Have a read of the Debt collection threads for even more info.
As for experian, they wont just remove the information, they will go by what the companies say, although you can have a "notice of correction" placed on your file regarding the entry they have made.