Books are still in print

Got an odd reply from the Book Depository to a question I had on my books. Dinky the Elf and Last Train to Murder are listed as out of print as their supplier doesn't have any in stock. Project:Hero is listed as in stock as the supplier has 130 copies. Unless the company that puts out Project:Hero then they owe me some money cause they would have had to buy it from Lulu.com. But so far I haven't been paid for them.