It's boring, I want a new phone and the second chance phone is at a pretty good price but why put them if they are never available
These are used phones .... so the stocks depend on what the provider of this service is receiving.
Stocks vary constantly on this website.
Why? Precisely, beacause they are at low prices, it goes quickly for the most popular models.
You have to look every day... It usually ends up having a few, which are sold out as quickly as they arrive.