When is it okay to demand a refund?

[zina10]

Darn, let's hope not! Or in that case, I suppose it's reasonable to ask him to send me a check?

Don't do it.

Checks can bounce, even days after you deposit it. And then its another couple of weeks later and a whole nother mess to deal with.

If anything, ask for a postal money order sent registered mail. Tell him to deduct $5 from the total in order to send it registered.

Well, that's what I would do. I have a feeling he isn't done jerking you around yet, though