Ok ok hold your horses. Not sure if anyone else has pointed this out, but if you are referring to March 29th, TODAY would be the 6th business day. And they said 6 to 10. So nothing to fret about yet.
(I had been responding to someone worried about the fact that a package had not arrived here to Buenos Aires as soon as he had hoped.)
Hold your horses means "hold on, be patient."
Did you know? In the 1800s, it used to be spelled "hold you hosses" since hoss was the slang spelling of horse. Read more here.
Photo credit: Ian MacDonald