This website is rigged, the timing is fixed for members to win, if your opponent is losing they had time, i even record the games sometimes just to study the moves and all you see time is being fixed, i just play for the fun of it lose or win, chesscube is way better than chess.com, my username is spellmyname
I am really sorry to hear that John! One thing I would like to mention is that we do not alter the timing of games. When these things happen, it is all about the internet connection and lag. We have NEVER manipulated games or clocks:)
What we would love to do is speak with you at support@chess.com so as we can make sure this issue is solved and you do not experience any other inconvenience.
At your complete disposal,
The Chess.com Team