Unfortunately, I have run into issues in the past when I tried that and
my post office would not accept the package due to the date being 3 or 4
days old. They said the package has to be mailed on the date the label
states.
If he advertised free shipping, it is free shipping. When I first
started selling I greatly underestimated the cost of shipping an item,
and when it sold the price barely covered what it cost to ship! Too bad.
I advertised free shipping. My mistake, ...
