Just for some comparison.....
If I am lucky.... I manage to wager $1000 at a cost of +/- $11 to my pocket on Stake originals. Now...over a 7 day week... it is costing me a minimum of $77 per week to wager $7000. (This is just wagering.... not the money I waste on Slots and Sports bets)
My weekly is between $14 to $16 every Saturday on Platinum II ..... so how does this compare to your statistics?
I have to say even people who end up gambling around the same amount of money on the same vip level, end up not getting the same amount of money at all. Don't get me wrong, I am not saying that it should be getting the same amount of money for sure, of course it may not get the same amount of money, but you can't just compare two different people together.
I mean we do not know what the difference is, we do not know how it's calculated, but I remember there was a guy with plat 1 and two of them got together and tested and bet the same exact things for a month, and still got like 2 bucks difference. Nothing big of course, but still it wasn't exactly the same, so your past might be impacting too? I don't know.