I can vouch for this. I have returned items a year later. Without original packaging. Without a receipt. They gave me my money back no questions asked and they were even friendly about it.

Why would you need to return something (opened, used, without packaging) a year later?

It fails to do what it lived up to do.

I had an IOT plug fail (plastic melt) and returned it, and they took it back, no questions asked.