How to Contact a Difficult to Reach Player?

[Bixby]

If you're catching him online now and then, I'd say set up a macro to send him a tell & keep it on a button you can spam when you see him. That way you don't have to worry about the time it takes to type the message. If he has given others their gil back and is willing to do the same for you, that should at least get his attention & maybe get a reply.

If you don't have outside contact info for him, I can't think of any good way to get in touch with him otherwise.

Edit: Or, for that matter, throw /flist add "Name Here" in the macro and that might get his attention, too. If he accepts, you're good, since you can mail him then.