Yes, it is possible to lose the badge, it happened to me 
Now, I donât think it affects sales, I still have as many even without the badge.
Hello
Letâs talk about the quick badge. This doesnât just depend on the sellerâs goodwill but also on the carrier, in this case Mondial Relay. All the lockers around my place have been unavailable since the middle of the week. I suspect they are broken. Itâs possible to pick up, but the Send button has disappeared. Since there are no more partner shops, itâs simply impossible to ship packages, and when itâs possible again, it will be congested. Itâs a lot of stress for 5 euro ordersâŚ