The International Federation of Red Cross and Red Crescent Societies, which is Geneva-based, issues an appeal, essentially a request for funding, and a plan of action for things like Syria. Member Red Crosses and Red Crescents contribute financially towards that appeal. Some members sometimes decide to go bilaterally and not contribute through that one pot of money. For example, the United Arab Emirates Red Crescent has set up a camp, and hospital, and so on in Jordan on the border with Syria, deciding not to go through the appeal. There are humanitarian activities that go sometimes outside of the pot, but mostly it goes through the pot.
Have Gulf States contributed? Yes, they have. Have they contributed enough? We still need more money.