Holiday Return Policy. I know today is the last day, but is it the last day for them to start a return, get it in the mail, or have it delivered back to us?

I just had another customer start a return this morning, for Christmas decorations that they purchased on Nov 1st, 1 item, $200, claiming they no longer light up. My experience in the past had been that this item was used outside for 3 months, abused, and will be returned dirty and broken. I always have a handful of customer that try and game the system by buying their Christmas decoration on Nov 1 and Returning used on Jan 31.

I was just hoping that I could put an end to this particular customer nonsense before the get it in the mail. I know today is the last day, but is it the last day for them to start a return, get it in the mail, or have it delivered back to us?