Possible Clues:

• Does this alter the money you get back?
• Best not to do it in 12
• That's not the same sort of money you get back
• Is it as good as a rest?
• What little you get back is not the same
• All the same, that's not only the return you get for your money
• Variety in coinage?
• Having the money, assume a new identity
• A few coins in place of business
• Money returned as balance after purchase