While there are slight discounts on digital gift cards, the best savings you can possibly get is by going physical: Right now, you can get a full $20 off $100 Roblox gift cards. Christmas is saved!

Roblox Digital Gift Code for 4,500 Robux - $40.00Roblox Digital Gift Code for 7,000 Robux - $60.00Roblox Digital Gift Code for 13,000 Robux - $100.00Roblox Digital Gift Code for 16,000 Robux - $120.00 ...

For this, you'll need to pay real-life money to get Robux (or a Premium subscription), and that's where Roblox Gift Cards provide a safe and easy way to add credit to your account.