One of my accounts has been moderated for 1 Day reason being “Discriminatory Content” due to something I had said being misinterpreted, I sent an appeal using the “Violations & Appeals” tab to hopefully appeal my ban but instead, the violation category was updated and my ban ended up stacking, giving me a 3 Day ban instead of keeping my 1 Day ban
On another bug report it was reported that the “warning reappears” while it gets reviewed. My guess is after the review is concluded, roblox just hits you with the same punishment reason which stacks your ban
Edit: Nevermind your reason was changed to harassment, if you were banned for harassment before on your account then the next ban would be 3 days instead so this might be intentional
I believe roblox uses a strike system, so if you were banned for harassment before then you would only get a worse ban if you had the same reason again which probably happened here
In short:
You were first banned for discriminatory content which was probably your first offense. But after appealing the moderator decided to change your reason to harassment and since you were banned before for harassment you received a 3 day ban instead probably