Can you contact the buyer of your storage unit?

If a lien has been placed on your unit, it went to auction, and somebody bought your stuff, it is up to the storage facility manager whether or not to provide you the contact info of the buyer. Note that storage facilities HATE auctions because of issues like this that arise, but there's no harm in asking politely. Especially if it was a personal item of little market value, and you're talking about compensating the person who purchased the unit, you may have some luck finding the person who has your items.