Roblox on xbox problem

So i made a roblox acc way long ago right, so I signed in and used a different password as I usually do, I found this out by going on my pc and typing in my gamertag and the password I would've though I would use, so stupidly enough I press on "unlink" and press confirm, basically how do i reset a roblox accounts password on xbox , thinking about it know this should be on roblox but uhhhh

:)