Interested buyer is taking long while I have another interested party…

I'm in the process of selling a domain to an interested buyer who is also taking too long to close the deal. It's been active since Friday and he's dragging his feet. Apparently, he has a large company and he's confused as to who manages his domains. He's put me in contact with the head of his marketing agency, who then referred me to another employee who's absolutely clueless. Then, he cc'ed his IT company who's also lost…. We finally figured out a way to make it work but now he wants to…

Interested buyer is taking long while I have another interested party…