Unfortunately CloudBet gotten progressively worse over the past year. They had an incident where they voided a bunch of legitimate winning bets while allowing the losing bets (on the same game) to go through, and since then their site has been full of problems.

However most people still got their withdraws so I wouldn't call them a scam yet. Wait to see what their support says about your payment. Make sure you document every chat log, email, etc. Worse case scenario, you would need the evidence to submit a report on https://www.sportsbookreview.com/. Gambling sites hate bad press so issues on sportsbookreview generally get solved pretty quickly.

If/When you get your withdraw, never play on CloudBet again. I would recommend NitrogenSports or Fairlay as they are 2 bitcoin sportsbooks I've had no issues with in the past.