My tip for you is to buy from Ledger itself, cut the middleman. This would allow you to have an increased amount of trust, since Ledger itself even says that they recommend not buying from third party sellers.
Definitely agree with you on that piece of advice. I think the Ledgers that are available on Amazon are actually sold through Ledger themselves (and please correct me if I'm wrong), and that's how I bought mine. I'd never buy one either used or through a 3rd party seller, because you never know if the device has been fooled with--at least
I'd be constantly paranoid that someone had the private keys or something.
The best way to buy a Ledger is right through the Ledger site itself. You can even pay with bitcoin if you want to, so I don't see any reason why anyone wouldn't just do that. And yeah, OP, I think you're going to have to just buy a new device and either use your old seed or create a new one. The good thing is that they're pretty inexpensive (or at least the Nano S is; the Nano X is a bit pricey if you ask me).