Highly unlikely, did you order express with tracking? Domestic post is running slow atm, just had a domestic order sent regular mail take a week from one capital city to another. The only domestic seizures I've heard of were in some small town near Perth where the local LE clearly short of more productive use of their time conducted a operation on the mail simply due to the very low numbers of mail coming through the sorting office and I think that was just o/s mail too. More likely you order wasn't shipped when marked in transit and its in the Christmas post.