Warped and raised laminate kitchen floor ?

I recently had a laminate floor laid in my kitchen which I was initially delighted with. However, my washing machine leaked and although I mopped the water up within an hour, the floor has been completely ruined. I am very annoyed that the Homebase advisor told me the laminate was excellent for kitchens and bathrooms and highly recommended it, unfortunately she didn't mention what could happen if the floor became wet. I went back to Homebase to explain what had happened and was told that adhesive should have been used between all the joins when it was laid (it was advertised as glueless). They said it was nothing to do with them!
Could anyone please advise me if this is the case and if it is worth pursuing.
Many thanks