if u have bought a usertitle and want to change it back to forumite, etc. is there a cost

i dont think there is any cost for that

there isn't, you do it via user cp

IF you had tp and vip.
BUT, if you bought a custom user-title I guess you are not going to buy again to change it back to normal

so, does that mean you can change it back for free^?

I guess?

ok, i'm waiting for someone to give me a sure answer