Your players deposit more and more because they are probably just stacking absolute’s bonuses.
Absolute offer continual 15% up to a deposit of $1000 bonuses.
I would offer 4-1 that your players are depositing and then withdrawing most of their deposits after 48 hours (this churn also reduces your payments if Absolute charge deposit fees to the affiliate). This keeps the player with a nice balance of 10 cents a hand bonus to clear and artificially inflates your deposit stats.
Absolute’s games are also horribly tight, so most hands at 1/2 rake just 25 cents.