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.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.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.
You can only call this method when authenticated as a Wix app or Wix user identity.