"Cred Spin" does not appear to be a widely known or established gambling or casino game. It's possible that it could be a localized or relatively new game that emerged .
If "Cred Spin" is a specific game or app that has gained popularity , I wouldn't have information on its specific outcomes or whether anyone has hit a 777 jackpot in it. To find the most up-to-date and accurate information, I recommend checking relevant online forums, gaming communities, or the official website (if available) for "Cred Spin." Additionally, always be cautious and responsible when engaging in any form of gambling or gaming.