I guess it could be claimed that it has been fulfilled - he mentioned a price and it was clear and unambiguous as to what they were - it's irrelevant as to whether they're public or not.
I'm on the fence about whether the type of thread should have been allowed and or/whether payment is required - i can see both sides of the story.
One thing I am sure of though; the OP has made himself look like a right ****ing bellend. Not sure i'd want to deal with him on a professional level...