Possible Clues:

• Raise the price after agreeing a lower one
• Raise the price after agreeing to a lower one
• After agreeing a lower price with one person, accept a higher one from another
• Outbid another would-be (home) buyer
• Raise the price of a house after agreeing a lower price
• Raise price of property after agreeing a lower sum
• Raise the house price after accepting an offer
• Do house buyers find extremes in Tom Hanks' character?
• Raise a house price after offer accepted
• Raise price of property after receiving an offer for it