adjustPoints( )

Adjusts the point balance of a loyalty account.

You can adjust the balance in two ways:

• balance allows you to set the total points balance to this new amount. The transaction type will return as "ADJUST".
• amount allows you to adjust the points balance by this amount. This amount can be a positive number to increase the points balance or a negative number to decrease the balance. The transaction type will return as "GIVE".

An account may not be adjusted to result in a negative balance. If you pass an integer in both the balance and the amount parameters then the balance adjustment takes effect and the amount adjustment is ignored.