i had several pc parts coming on the same day i had a one time password for motherboard and graphics card the amazon delivery guy had a package for me i could see by the size it wasn't motherboard or graphics card he insisted it needs a password or he couldn't give it to me i said i only have a password for graphics card and motherboard so he said oh can i try that and you guessed it was showing up graphics card and motherboard had been delivered i contacted amazon they refused a refund as i gave password even though i thought it was ok it was someone who delivers for them i said to them you need to be speaking to the delivery guy about this as its a scam they said we have no way of seeing who delivered it so now i have to wait a few days to see if i will get a refund as i asked to speak to someone higher than the person i was speaking to at first but don't have much hope of a refund i will probably end up paying for the card and motherboard the delivery guy has so beware of one time password scam.