Visit your local OfficeMax to save $15 instantly off $300 or more in MasterCard gift cards purchases. The offer is available through March 8, 2019.
Promotion offer is limited to 1 per customer while supplies last. Not all stores enforce the 1 limit rule.
There is a $5.95 activation fee for $100 MasterCard Gift Cards and a $6.95 activation fee for $200 MasterCard Gift Cards. So the best option would be to buy two $200 gift cards, to maximize points.
You can use you Chase Ink cards to earn 5x or even better, take advantage of the $10 off $50 Amex Offer for Office Depot/Max.
Office Depot doesn’t carry MasterCard gift cards so you have to visit a OfficeMax store. Also in NYC you’ll have a tough time trying to find a OfficeMax that accepts credit cards for gift card purchases.