Hi. That badge is fleeting. As the text says, when you get a Fiverr's Choice order, you have the chance to get the badge again if you deliver great work, or the buyer was happy, or something. If they weren't, your Gig probably will not get it again for a while. For Fiverr to know that a buyer was happy, I guess, yes, it would be necessary that they share a review, whether a public one, or, probably even more importantly, the private review. Asking a buyer to leave a review isn't recommended, however. If your asking is, or could be interpreted as feedback manipulation, it can get you a warning.
I wouldn't fret over that badge, do your best, as always and with any order, Fiverr's Choice or not, and you'll surely get the badge again, eventually.
miiila's post in Fiverr choice badge not appearing after order was automatically complete. was marked as the answer
