Do you think that gambling casino are so intelligent that they detect that a person is going for a martingale kill and for that reason he continue to lose and lose ? I mean the OP lost 32 consecutive times, that is not normal by any means. Also it depends on which site you are playing as I do not trust all the sites to be fair.
There are, without a doubt, plenty of scam casinos and gambling sites out there which are not fair and will give out losing streaks on purpose to rip off their users and maximize their profits. This is by no means unique to users who are using a martingale system, and unfair casinos can rip off anyone who uses them.
You should only be using sites which are
provably fair. Most honest bitcoin gambling sites achieve this by generating a secret "server seed", but showing you the hash of the seed before you bet. You generate a "player seed", and the site combines the two seeds (usually by hashing them together), and uses the resulting number to generate the outcome of your roll, flip, spin, card dealt, or whatever it is. To prove fairness, you can reveal the "server seed", which you can check hasn't been altered since you know the hash, combine it with your "player seed", and confirm the final result matches your roll, flip, spin, etc.