I had a scammer use my credit card to purchase Mavericks tickets from themself for $10,000.
According to my CC company the scam is quite common. They put tickets up for sale on a website that sells 3rd party tickets and then they buy them from themselves with your credit card.
Maybe sending the tickets to you further distances themself from the scam? They could possibly prove that they sold tickets and mailed them to the buyer. If the site that was used to sell the tickets can’t prove they used a stolen CC, the site may pay the scammer for the sale and eat the loss to the CC company.