Yes, it’s possible to use Microsoft Rewards for Robux. This allows users ... to get 800 Robuxes and 15,000 points for 1000 Robuxes. Besides the Roblox Digital Card, several other gift cards ...

Now, those who make the same purchase using a computers web, and gift card will get 1000 Robux. (If you use the Roblox app on an iPhone or iPad to make buy, you’ll still just get 800 Robux.) ...