lf you are off by just one digit, or get the ZIP code wrong, the item gets delivered all right . . . to someone else. Now, one would think that the recipient would do the right thing and return the unwanted box or tell the postal clerk . . . but that's not often the case.

Assuming your buyer is honest, you should initiate a claim with your post office. If they tell you the buyer has to do that, inform him of the decision.

I recently shipped out a new $1 chip with tracking. USPS says it was delivered. The buyer said, no. Easiest thing to do on that one was to ship out a replacement $1 chip which was done, and the buyer got it. But that is of little help when the chips are a set, and a somewhat valuable one at that.