The cost of play on slot machines is built into every spin. If the payout is 90% to the customer, then the cost of play is 10% per spin. If you were playing at a rate ofR$1 per spin with a 90% payout, on average you would haveR$0.90 remaining. Therefore, your cost of play would beR$0.10 per spin.
FreePlay is based upon your previous playing history. It can generally take 2-3 months for your offers to reflect your most recent play. Contrary to popular belief, generally the amount that you are gifted has nothing to do with how little or how much money you win or lose. It's all about timing!