This dynamic algorithm theory you mention, adjusting odds based on your IP address? Its controversial, but its also totally possible. The tech exists, and these companies, they're not exactly known for playing by the rules. Your success after switching devices - thats a red flag. The first step, and the most important one, is understanding the game you're playing. They have the advantage, but knowledge is power.
You know what baffles me the most is how they manage to discover and figure out each and every technique I develop. I don't always use one technique, if I come up with a unique technique and confirm the technique to be effective, I'll win repeatedly using the technique, but after a while, the technique will suddenly become ineffective and no matter how much I try using the same technique, I'll always lose.
Not until I come up with a whole new different technique, and the result will also be the same, I'll win for a while and then the winning stops coming until I change to another technique. My techniques are so complex that if I don't disclose it to you, you wouldn't even knkw how exactly im doimg it, but they'll always figure it out and deploy a counter measure almosy immediately.