Why won't Microsoft rewards let me redeem anything?

(UPDATE: I just use my phone to redeem things now. Another solution I’ve seen mentioned is using Google chrome instead of Edge. Please I’m begging you stop replying my mail is literally filled to the brim with new replies every day and it doesn’t even go into the junk folder)

I had finally gotten enough points to buy something from Microsoft rewards, so it showed me that I could redeem it since I had set it as a goal. I clicked "redeem now" and went through the process, however, when I got to "confirm," things became difficult.

I clicked confirm, and waited a few seconds, expecting it to tell me that it was successfully redeemed, but nope. The confirm button just became blue again. I thought it was just a one-time thing, so I clicked it again. same issue. I decided that it's probably just my computer, so I restarted it. Tried it again, same exact issue. I stopped trying for a few days, and it still doesn't work. I don't know if it's a glitch on my part or if it's like this for anybody else, but I just want to see if anybody knows how to fix it.

Also, don't make fun of me, but the thing I was trying to redeem was Robux. I don't know if that has anything to do with the problem or not, but I felt like I should mention it.

(I find it strange that even though this was posted months ago Microsoft has done nothing to fix it, even with them literally advertising robux they’ve just ignored it. We need to make a change. Send them support tickets telling them to fix it, we need as many people as possible in order to actually achieve it. If they won’t do anything, we’ll make them.)