On the 24th, "Skagway" posts to Pogo's journal that Pogo was kicked out of his house and is saving up money for a computer, thus is unable to complete commissioned work. Once he has a computer and a house he will refund the money. Skagway may or may not be an imaginary friend.
On the 30th, GhostlyDingo posts to Pogo journal that Pogo was killed on 19th. To ask for proof is considered very rude and most everyone falls for that. After all, he died and can no longer refund money for work that cannot be completed.