I think you missed what I was referring to as abuse. The discussion I replied to was discussing splitting a single deposit in the same transaction into 2 outputs to try and get 20 spins rather than 10. That doesn't work if they pay the same deposit address because they get combined back together into the single deposit that they really are. @FinneysTrueVision and many others have worked out that they can send one deposit transaction to multiple deposit addresses and trick the system into thinking they are separate deposits.
Ok, I see what you mean now. It's using the multiple deposit addresses that is the problem.
Regarding my 2 deposits, they were made to the same address. They were separate transactions and I'm wondering if I should have gotten 20 free spins, because I only got 10 from both of those 2 deposits.