Its not the bin but it’s the live cards you thought it was. If its not the paid version of MrChecker, then that is not even close to live. Those automated free checkers are providing false lives from the very start.
You better use manual live checkers(check out method) to check whether your cards are really lives.
Additional things to consider:
Public bins are highly to get burned immediately so they are mostly working on free trial sites and not for purchases.
You should always clear your browser cookies then connect to a VPN.
Lastly, please remember that bins are ticking time bomb, they will only work at a certain period of time especially when they are shared publicly.