Advent Laptop?

My laptop has kinda broke... I dropped it a few weeks ago and the back bit on one side cracked. It still worked but i thought if i was careful it would be ok... But nope i opened it up tonight and one side basically snapped. I want to contact Advent to see if there is anything they can do.. Im not sure how much guarantee is left because im at my boyfriends house and dont have the reciept.. Does anyone know the email address/website i cant write too? And is there anything i can do if i dont have any guarantee left? I cant really afford a new one :(