From the sound of things I would say you are back to your old tricks again astana. Make a deal, negotiate something else, send funds to prove your "worth" then complain when the seller backs out from frustration.
I have done numerous transactions with shakaru and he has always been a stand up guy. You are leaving out details to help prove your case and attempting to force a trusted member to give in to your scammy ways.
Posting something like this knowing that you would need a large amount of evidence to prove to the community that you (a known shady character) got scammed from a trusted member is beyond me. This whole situation stunk of astana was soon as I saw it.
Good luck