Based on my experiences , it doesn't. I always end up losing especially when autobetting

Mostly I lose too while using autbetting on dice ! well yes martingale for me on luckybit works i won 1.4 last month using that lol .
Yes, there is a very good strategy used by the house to stop martingale, that there is a maximum bet limit, so only upto a point it works but when the house limit is reached then we end up loosing.
And maybe you are wearing their signature, that's why you are saying that you won.
But if it's real, then very good for you.