I threw away a 2AA minimag that had leakalines in it after I spent several hours trying to get the batteries out. My advice is if you know what brand of batteries are in it check the warranty and if they have a warranty contact the battery maker and get your light replaced if they will do it.
"If they are alkaline batteries, they have likely expanded and leaked. I would shoot a screw into the negative terminal of the battery and pull it out with pliers. Have no fear. That dead alkaline battery will lie down and take it like a punk. You may have to repeat for the second battery. Once they have been removed, you may or may not have to deal with the fallout of leakage.
If the batteries are of some other chemistry, please disregard this suggestion."
I also suggest taking a few pics to go with your complaint. For future ref, I suggest trying to mechanically lock out all electronics using Alks.