not trying to be a dick, but in order to get a refund you would have to prove quality of wormkanship is to blame. from the manufacturers point of view, they have no way of telling if leak was cause from abuse, neglect, or vandalism? there are so many things that could've caused them to start leaking. and if you approach them right, you might get a relacement. but if you demand a refund, i'm sure you know the outcome. . .
just my opinion. good luck!
just my opinion. good luck!