Unfortunately, yes. Robux has been removed again. Multiple users reported that Robux has been removed from Microsoft Rewards. One of the Xbox MVPs says that Robux was removed because the codes ran out.
Why can't I get 100% Robux on Microsoft Rewards? ›
Are you referring to the Rewards program? If so, it can take up to 24 hours to receive a reward after redeeming it. If you don't get it in that time, check your order history on the redemption page of the Rewards site.