They do, just in the order they receive messages. They use those as tickets. Don’t get me wrong, they try to filter things in between and answer easily resolved things in between, but it can take time to identify and resolve issues. Also, it isn’t always on them. There are times they are stuck waiting on other departments or companies, such as Uphold, in order to figure out what’s going wrong.
That’s weird, as usually you wouldn’t see anything if your account is suspended. The ones who usually have had that issue are those who are using a VPN to appear in a region they aren’t really in. Brave recognizes you’re not in that region and you don’t get paid for it, since you can only be paid for viewing ads in your region.
To clarify, this also has occurred for people who were in areas next to a Time Zone and their PC had them as if they were in other area. For better detail on that, check out Stopped getting ads and BAT rewards for last 4 months - #4 by Saoiray