1 - Before you bet your wager, pre-roll.
2 - It really depends on what you pre-roll. If you pre-roll 1 - 6 keep pre-rolling until you roll a 7 - 12. BUT, if you pre-roll 7 - 12 to begin with, make your wager straight away.
3 - You pre-roll 9, you make your wager.
4 - You will roll any number between 7 - 12 again. BUT, remember if you roll 1 - 6 during your pre-rolls, keep pre-rolling until you roll between 7 - 12.
5 - This has worked for me 4 days ago. I won 27M in 17 minutes, considering I was only gambling 2M - 3M all the time. Occassionally a 5M bet. Try it.
IF this doesn't work, I will give you back you your wager. Considering it is between 1M - 3M. But you have to show me evidence, so record it.