The price has gone back up to $50 on the Tracfone Moto e5 Cell Phone + 1 Year of Service. If you missed it, put it on your eBay watchlist as I believe that it goes on sale periodically.
If you're just interested in the phone without service, that's still available for $30
here. The coupon would bring that down to $5.
As for the HAPPY25 eBay coupon, my guess is that it's targeted toward people who haven't bought anything from eBay in a while. I didn't qualify because, of course, after going nearly a year without buying from eBay, I ordered something a week before the coupon showed up.
cc_in_oh, since you're already a Tracfone customer, are you part of their
rewards program? I've read elsewhere that if you send someone a referral code to join the rewards program, you both get 5000 points, which is enough to pay for a 13th month of service and qualify for a free phone unlock.