Isn't it there a more simple way to prove who's right and who's lyeing here ?  Megadice has said that they're willing to provide the ip logs of that session as long as you agree on it . In the same time you can ask for your logs from your internet provider etc . And if it's indeed your ip logged-on during the session megadice says you played the 19 BTC then that's that . Why the constant push back and forward etc .   Over 19 BTC I assume you'd be willing to ask for your logs from your internet service provider . Aswell give the all clear for Megadice to release the logs and that's it , end of story.