If you have a question, you should find the answer here.

Why don't my rewards vouchers match the amount I expected?

The amount of reward vouchers is calculated based on your expenditure.
 
It takes a number of weeks to produce our mailings. So there may be times when you've made a purchase between the time we started production of the mailings and the date you received your rewards. In this case, points are carried forward to your next statement.