Lol. Then the COA will be as fake as the autographs because those don't look any different. Unless if they were the actual books they made the template to print all the others that we all got.
I've been following this shop for a while and it looks to me like they use the retail versions of signed books, create a nice slipcase for it and sell it for a premium with their COA.
Premiere offered a COA as well with the Songteller book, but now that it turns out to be autopen they keep silent.