Hi, could someone help please? About 18 months ago I received a parking ticket from Civil Enforcement Limited. I went online and the advice was to ignore it.. I did but now I have a county court claim against me for £373.00. I have now been told my credit rating is very poor, what can I do?

]Hi everyone this is my first post on the CAG forum and i would really appreariate some advice on a claim form i recived ive been looking around this forum and the forums (Removed)i will post the claim form details below and then ask some questions issue date is 12/06/2013 AOS was done online 21/06/2013 but no defence entered yet Lowell portfolio is the claimant and their solicitors are Drydensfairfax Particulars of the claim 1. The claim is for the sum of 4xx.xx and is in respect of monies owing by the defendant on a mobile telephone agreement with Telefonica o2 Limited under account number xxxxxxxxxx The defendant failed to maintain the contractual payments due under the terms of the agreement 2. The debt was legally assigned by Telefonica o2 Limited to the claimant on and notice of the assigment was served upon the defendant 3.The claim also includes statutory interest pursuant to section 69 of the County Courts Act 1984 at a rate of 8% per annum (a daily rate of 0.07620) from the date of the assignment of the agreement to the date of issue (to 11/06/2013) being an amount of xx.xx now on 2. they havnt put a date to when the debt was legally assigned. I dont even remember this debt so could be quite old how can these people get away with buying these alleged debts for a few pounds and claim the full amount with intrest they shouldnt be allowed to get away with it, how can i legally tell them to pi$$ off and also on xxxxxxx website there is a poster who posted about a 'courtesy notice' has anyone got any experiance with this. I really am stuck as to what to do. I will ask them to provide me with proof that this debt exits with original documents signed by me. I know there is a letter in this forum to help me with that but i really would to someone to have a look at the courtesy notice and how could someone go about using it. I feel like just ignoring the whole rubbish but when it comes to courts i know you cant. Please help somebody. Thanks in advance