Yet another example of someone claiming the site has 'glitches' when they lose money. As our support said, we have thousands of people betting with auto bet daily and an issue like this has never occurred. If you are able to duplicate the issue we will gladly refund you in full with a bonus. Given that there's been 100s of millions of rolls on auto-bet without issue I'm tempted to believe this is personal error.
I say this often, please, don't gamble more than you can afford to lose and exercise caution when possible.