To receive the maximum reward, do I need to make card purchases over 3 months?

Yes, to receive the maximum reward, you need to make at least one purchase in each of the three months of the promotion. Purchases can be made in any months during the promotion period. The months in which transactions are made may be consecutive or in any order.

The first month in which transactions are made may be either the month the card is activated or any subsequent month during the promotion period. The same applies to the 2nd and 3rd months.