I don't know how many people are working there at any one time, but it seems like you could have a certain number of hours per day(I would assume it would probably be Israel time) in which someone could chat with customer service. Obviously those hours would not be very convenient for most people in the world, but at least they would know that if they really want to talk with someone, they can know there will be someone there during that time, and can make arrangements to do so at that time. I would think this would be by way of online chat rather than telephone.
This was a feature that we did have available for a short period of time, but we found that it did not adequately help our users, and that it was much more efficient for us to concentrate on answering our users through mail. This way we can answer more of the hundreds of mails that we receive each and every day.