My Microsoft Rewards account was temporarily restricted and I'm not sure why.

I have a Microsoft Rewards account with around 6500 points on it, and I've been wanting to redeem a Roblox Gift card for 400 Robux and 6000 points. I had a banner above my Microsoft Rewards dashboard and I don't remember what it said exactly, but it explained that unusual activity on my account could limit my ability to earn points. I thought of it as a warning but when I went to redeem my gift card I got an error that said my account has been temporarily restricted. I'm not sure why because I don't think I have crossed any guidelines, but I started this account around a year or 2 ago. I stopped using it for quite a while until recently this month or last month when I began again. There were maybe a few times in the middle when I logged on but other than that completely offline. I'm not sure if maybe that's what's causing this but if my account was brought back to normal and I was able to redeem points again that would be great.

PS: The banner is now gone, so I thought I might be able to redeem now but I still get the error. I also search using Bing as my main search engine if that makes a difference. I've also contacted customer support twice with no reply so I thought I'd shoot my shot here.

Image of what it shown each time I try to redeem points