Seller raises the price on you while you're driving over--how to react?

[Sean Dezoysa]

Of of the wholesalers in my mastermind group agreed to a price on an apartment building and started driving over to see the apartment. Midway during the drive the seller called and told him he couldn't let it go for any less than $5,000 more than the price they agreed to on the initial call. The wholesaler was upset that his margin dwindled but said it was still a profitable deal, and kept driving.

While I agree with his logic, my gut tells me something was wrong here. It seems like a pretty clear gambit by the seller to extract more money from a buyer who committed and was driving to his property. What would you have done in this situation?