Whatever payment method you are using, this should in no way change the payout on slot machines or other casino games at the online casino. Online casinos are obliged to keep their payout percentages the same for all customers, regardless of which banking options. Whether you are using credit card, e-wallets or even BitCoin, the payout for the online casino to the player remains the same. Payout rates are never determined by the players actions, from banking options of game choice.