Your autobetting system does not work as it should be, I just tried with bet 2x on lose and return to base bet on win but look at this screenshot of the result
http://prntscr.com/hpiv2c It should be fixed as soon as possible, otherwise it may affect both you and your players. Luckily it was just a faucet betting, I cant imagine how if someone with his deposit face this problem and realize it after he lost his deposit.
Thanks for bringing this to our notice. We will fix it asap.