Empty gel bottles melted in the dishwasher; can I still return them?

Here is slightly melted Luigi next to a normal bottle.

I saved empty lush containers for the past couple of years. Today I decided that it's finally time to sort them out and return them. I chucked everything into the dishwasher. Unfortunately, some of the shower gel bottles melted slightly :( I know, I should have thought about it... Are they still going to accept it back in the store like this? (UK, in case this makes any difference). Thank you!