As long as I know the reward for leveling up to Platinum 5 is $3,200 and usually there are also 2 other bonuses. They are recent gameplay bonus and reload bonus, these 2 other bonuses will be based on your recent activity (maybe the last 7 days activity). What I like with your strategy is that you did not force yourself to level up by deposit and wager although you are closed enough to the next level. It shows your patience, because I believe most other players will try to do it quicker by depositing and risking few hundreds dollar to get the $3.2k but you do it differently. Well, once you get this month monthly bonus, I think you should start do spam bets on dice with high odds such as 1.1 or below to wager the remaining requirement amount to level up. Good luck mate.
A few days ago one of my friends wanted to reach a new VIP level Silver and he bet on the Dice game you know the result is worse because in 100 spins at least 3 red/lose will appear so in my opinion this method is no longer ideal but if he wants to keep trying why not. As far as I know @AHOYBRAUSE is more active in betting on sports so it might be more effective to bet on odds 1.01-1.05 in addition, VIP progress on sports is 3x faster than casino games, if the target is $10k then just bet $3.3k on sports or 16-17 bets for $200 each.
Sports is a lot more fun to some people, it is not about which one would be ideal for the VIP status, maybe some people do that I wouldn't know but it is more about waiting time. Which means that I could bet 10k times before a game ends.
A football game takes on average about 2 hours, 90 minutes is the game, 15 minute break, plus some extra time, so it is around 2 hours per game, in 2 hours if you leave it on automatic dice betting, it could literally bet thousands of times during that span. This is why it makes more sense that sports gives better returns because you can't just bet on it anytime you want, the game has a time that has to be played, whereas games like dice and slot do not have that and you end up with something that is good in the end.