Reported flags for this user for violating the rules.

I totally understand that situations change, but when all communication leads to believe this is a legitimate deal I expect the transaction to occur. Obviously, this is now a pattern with the player and doesn't even have the common curtesy just say, "sorry".  When I had a trade fall through, I at least tried to make it right by the other party.

He offered a mob and I accepted. After the 24 hour waiting period he told me he had to cancel. He also unfriended me.