I have bought many books on ComicLink and I have sold books on ComicLink. ComicLink does a great job and I recommend them to others. I do not think that they played any part in the scam and trust them to do right by their customers. I do think that they should reconsider whether they want to allow PGX graded books in their auctions. I also hope that ComicLink will cancel the auction and send the books back to the seller.
I am not sure that PGX offers a guarantee for missing alterations in their grading. I am certain that I will not use or recommend their services.
Here is a screen capture of the listing for the altered Star Wars 1 35 cent price variant.
Here is the scan of the altered Star Wars 1 and a close-up of the label.
So how do we know that a scammer has turned a common mid-grade book into $705 bucks? The dead give-away is the price block. Here is a close-up of the altered title block which you can compare to a close-up of the title block of an authentic copy below it. As you can see, the "3", "5" and "c" and "Ccc" are not even close.
Here is a full-comic scan of an outstanding and authentic Star Wars 1 price variant that sold for $4367 in the same auction.
In the same auction, this altered Star Wars 2 sold for $390. It has the same problem as its PGX brother above.
Here is a close-up of the altered price block and below it a close-up of an authentic Star Wars 2 35 cent variant price block.