ShunAyumiTaiki: The player from the list of blocked users cannot:
* invite you to a game,
* see you on Who is online page,
* send you a message,
* add you to their Friends list
but i am not sure of he can not write you a message into the started game. Maybe someone can help you about this doubt.
Kipling: When a player resigns a game with cube then the winner gets the number of the points of the cube multiply by the number of the points of the current position of the pieces of the losser (i.e. 1,2 or 3 points). When a player rejects an offer for doubling then the winner only gets the number of the points of the cube.
If you received that warning then the reason was you hadn´t taken any own piece out and all your pieces are not in the oponnets´s house (2 points) multiply by the cube (4 points). Are you sure the cube was at 2?
When you gained 2 points, then there are two possibilities: 2x1 or 1x2.