I mailed my tax refund three weeks ago, but IRS's Refund Status page still doesn't work. Should I be concerned?

Question in title. I also didn't mail my refund certified or with a tracking number (just stuck it in my mailbox), so I don't have any way to ensure it actually arrived.

Submitted February 26, 2019 at 09:12AM by Bluefreakbob https://ift.tt/2GN7qES