Underquote

Many a salesman is told that the opposition has underquoted him. To the live-wire salesman this is no signal of defeat. If he conducts a showdown then and there, as likely as not he will find that he has not really been underquoted if value is considered.

If you underquote and call them back with a higher price, chances are they'll say to go ahead, but next time they have a repair, they may go to somebody else.