Wow you people are thick.  Who said anything about a deposit fixing anything?  That has absolutely nothing to do with fixing anything let alone the kitchen sink.  The only way to fix algorithm abuse protections is to deposit and then LOSE IT ALL.  No bot is going to do that.  Only a person affected by gambling habits will do that.  Thats what lifts any abuse geared free roll reductions.  Also,  reductions in the rolls are NORMAL if you read this right at the top of the page:  

"Why does the amount of Bitcoins that you can win, keep changing?

The amount of bitcoins that you can win with FREE BTC depends on the current bitcoin price and the biggest prize is fixed at US$200 and the other prizes in proportion to it. So, when the price of a bitcoin goes down, the reward amount calculated in bitcoins goes up and the other way round is also true. So, regardless of the current bitcoin price, you have a fair chance of winning US$200 in bitcoins on each roll."

As the price of bitcoin changes,  so does the free roll reward amount.  So a change from 24 -> 19 for example, is NOT anything abnormal nor is it due to any abuse protections.  But like my previous post states,  if you have hit some sort of abuse protection,  your only recourse is to deposit a large amount and then lose it all on purpose.  Basically you're paying them to remove it.  Pretty simple really.  And if you follow the steps I outlined, you'll also find that the site actually rewards people who use the site the way it was designed.  Utilize EVERYTHING.  Not just the freaking free roll garbage.  The rewards points are there for e REASON.  No bot is going to care about rewards points.  This is why the site rewards those that do accumulate them.  And if you do it properly you'll notice that you'll start having more fun,  wont care if you lose nor what the free rolls give,  and you'll actually start making a little bit every day rather than losing everything,  or gaining next to nothing.