Received extra box w/ wristband

I recently received my original order of two wristbands for W1 in one box and for some reason I just got another box with a single wristband. What do you all suggest I do with the second box? I know that these wristbands can be deactivated so I’m not thinking of selling or giving it away, but should I contact Coachella and ship it back?

Edit: The second box was shipped with my name and address, does this mean I just got an extra wristband and didn’t receive someone else’s order? I’d be more inclined to sell it if that’s the case lol