Hi Hannah
try not to worry, we all panic and want the best for our hammies, its good to see you care
. it may take them a while to find it, but i would advise that you leave it where it is now that it does not leak and they will find it and remember where it is. They soon get into their little routine!. have you checked that the water is coming out of the bottle now its upright?. push your finger lightly on the end they drink from to check.
in the meantime give them some cucumber which is mainly water, this will ensure they are hydrated.
hope this helps
keep me posted
georgia