The only jackpot i have won is the prime dice 77.77 one. I have won them three times, but unfortunately the wins weren't that big, The biggest i won from the jackpot was 0.007 BTC. Have you ever won a jackpot in your life? If so how big was it?
Did you really rolled 77.77 twice in a row? And three times??? You must really be very lucky!! I never won any jackpot, but I consider hitting the jackpot when I win big, which is more achievable than hitting the actual jackpot.