Cancel a purchase to a flight

Hi, I'm from Portugal, and I recently bought tow tickets from Ryanair to travel from Porto, Portugal to Barcelona, Spain, next august.
But now, I would like to cancel my reservations, because I can't travel on that dates anymore and I don't have other dates at the time to exchange.

I search all over ryanair's official website, but I found nothing about cancelling flights, or returning my money, and I also called to spain's number (because it doesn't have any portuguese number or any mail adress for people to write. But no one until now, told me what can I do, or how much would I pay, for cancelling the tickets, or even if that's possible.
I now know that I rushed myself when I bought the flights, but I realy want some information about this.
Can anyone please help me?

Thanks

kx

With Ryanair you can't cancel. Or you go in the date you booked or forget the money.

You can get the info by going on the Ryanair website:
- "Travel questions" (left upper corner of the screen)
- then "Pre-flight changes"
http://www.ryanair.com/site/EN/faqs.php?sect=chg

Fares are non-refundable; you can manage a taxes refund or a change of flights, but both are costly. If you have booked a cheap flight, it might be best to forget it and make another booking from scratch !

Thanks for the answer