Maniaplanet Forum

I don't know if you guys can help with this; I don't anything about ManiaPlanet because it's all over the place lol.

So I recently tried to Log In to "TrackMania United Forever." But it says my account doesn't exist but I'm logged in to it via ManiaPlanet (It was converted)

So my KEY for United Forever doesn't work in ManiaPlanet

And when I try to make a new account in United Forever, The Key says it's already been taken.

There is a big misunderstanding, as there was NEVER a conversion of the accounts and the keys.
In the beginning the TMU users could keep their account names in Maniaplanet. But it was only for the names!
And they had to purchase the Maniaplanet keys regularly.

Now, what do you want?
This is the forum for Maniaplanet based games.
For TMU please visit tm-forum.

Okay, so if I converted my Account from United Forever to ManiaPlanet (Which I did)

Why does my account on United Forever no longer exist?

There is no such conversion, at least I don't know if any.
Where do you have this from?
It is more probably a cheap hack, and you have lost your account...