i have received a letter from interum justitia saying that i owe just short of 4000euros to citibank in germany...... now i did have a loan off citibank whist i was living in germany but i fully repaid this this via direct debit and finished paying this loan off around 14 years ago......... i have told the debt collection company this and they say they are getting some paperwork from citibank to pass on to me...... i have emailed my old bank in germany who say they only keep account info for 10 years so i cant prove that i have paid......any advice what i can do?