Thanks for your response DX

Thank you to all of you for your responses, I'll send the letter Monday and await the outcome.

On the 10 May 2011 I received a PCN for staying longer than I should have in a car park at Berkeley Precinct in Sheffield. I have never entered into any correspondence with the issuing company on advice from forums and the media. I believe it was initially Parking eye but over the years I have received letters from various companies and a solicitor. The solicitor's company even rang my home. Due to not being contacted for over a year I threw away the paperwork I had received believing that it was all over. BW legal have taken over and have been offering me discounts etc. I have now received a Letter of claim, balance due 154.00 and threatening me with County court action, CCJ and siting Parking eye v Beavis. If I don't pay and they take me to court the total bill is estimated at 272.50 I have until the 10 November to respond. I have had nearly 6 years of this and am worried. I didn't originally pay the fine because the company had not put any additional signage up at the car park as far as I was aware stating that you couldn't stay longer than 2 hours however I did not take any photos etc once I received the PCN. Can you help me as to what I need to do ? Do I need to write to them denying the payment etc. I feel I don't have any justifiable defence that I can evidence. Thank you.