eBay is blackmailing?

Recently I received a debt collection letter that I owe eBay 18.01 GBP. After logging on to my eBay account (which I haven't used over half a year from now) I realized that I have ton of invoices stating that I failed to pay my monthly fee of £1. After long and tiring search for this "magical fee" I found no traces of it in the User Agreement (T&C), it only applies when someone is selling an item. I never sold anything and was using eBay for around 2 years and never had to pay anything. Also if I had to pay £1 a month where did the 1p come from?

I tried calling eBay today 3 times but all three times some Indian guy picks up and after I explain my problem all he says is "If it says pay, then pay. It's not my problem" and then hungs up. ON the third time he hung up as soon as he heard my voice.

Is anyone else experiencing the same problem? and how can I stop it, also eBay sent my unpaid fees to Transcom and they sent me Notice of Debt Collection and if I fail to pay before 13th November the will use door step collectors.

In addition to all that I am only 15, consequently can not have eBay account (but come on who doesn't fake their age online?) and thus can not have debt.