No. If you have a Facebook chess app account and a Chess.com account you can merge both successfully. It won't affect your premium membership.
Go into your facebook account, then into your Account page from there. At the bottom on the left it says
"Merge Facebook/Chess Accounts
Merge your two accounts into one..."
Use that, but please make sure if you're entering an email address that it IS the one attached the the chess.com account you want to merge with.
Its on this page:
http://www.chess.com/fb-merge.html
Hi there,
I currently connect via facebook login API, how can I migrate my current account to a chess.com account only?
I am also a premium member, do I need to re-register on chess.com and then use the facebook / chess.com merge facility?
Will my premium account still be active - or do i need to cancel and then re-new
Thanks in advance