. Reviewers satisfied with BitBetWin most frequently mention customer service, different platforms, and online casino. Here's a breakdown of the welcome bonus. Reviewers satisfied with BitBetWin most frequently mention customer service, different platforms, and online casino. Join 1xBIT today to experience all crypto betting has to offer. 1xBIT is home to the very best casino games and endless betting opportunities. Here's a breakdown of the welcome bonus.