Individual jws may help others and give them a hand up if they're jws themselves, but the org as a whole has no charity for its own members. According to them, Jehovah will look after you and if you're poor and destitute, it's either a test from Satan or you're not 'putting the kingdom first". If you were, Jehovah would give u all u need, right?
The wt couldn't have a charity for unfortunate jws because it would undermine their promise that if you always go witnessing and to the meetings, Jehovah will provide.