Newegg has a promotion on Xbox gift cards where you can buy a $100 Xbox Gift Cards for $90 with a limit of 3 per account. They are also selling a $22 Xbox Gift Card for $20. These deals on their own are not very appealing, but it can get better with this Masterpass promotion that will save you another $25 on a $200 purchases from Newegg with promo code MPBF17. That means that you can purchase two $100 Xbox Gift Cards and one $22 Xbox gift card for just $175. It could be better to go for a $20 gift card instead of $22, if you’re planning to resell.
On top of that, you can also try going through a cashback portal TopCashBack for a $3 bonus and pay through Masterpass with a Visa Business Card such as Chase Ink cards that are registered with VisaSavingsEdge for another 3%.