Yeah, the best idea is to wait for a full moon before you get the subscription, that's when the magic that brings good luck is the strongest
But seriously, I guess you are talking about the Castles of Burgundy. To have an algorithm that would alter your "luck" in dice would require some complex programming - the program would have to assess each round what rolls are considered lucky or unlucky for you and then adjust the probability of each roll.
Most BGA games are developed by unpaid volunteers. I see no reason why would a volunteer who does it as kind of charity work do such a thing like making unfair rolls. It would be a lot of work just to be mean. And I'm not even sure if that would be possible at all - that is, to access the information if the player is premium from the level of game code. The game called Fluxx has a card with an effect that depends on wether the player has a birthday and I know it's impossible to check with the player's profile that, so it may also be impossible for the game code to check if the player is premium.
And if BGA was to make their paid employee to do such a mean thing... it makes no sense either. Programists are expensive. And it would take lots and lots of work to make such a mean unfairness. Even more than by the unpaid volunteer, because the paid employee would first need to understand well the code written by someone else. That's a lot of money to spend and no benefit at all. Even if some people would actually buy premium to win more games, some other people who want a fair game would just leave the site.
And you have 48% of wins in Castles of Burgundy. It's not like it was impossible for you to win. If you feel like you lost your luck recently, my bet is that you reached the elo where your opponents start to take your possible moves into consideration. When you start playing the game, you match up with people who only watch their own board, so it's unlikely for you to get a roll that wouldn't give you any good move. When you get better, you will eventually be paired with people who actively watch your board and try to recude your chances of getting a good move. Like for example, if you have nothing to place if you roll 1, your opponent may pick the 1 ship over the 4 ship, so that if you roll 1, you also have nothing to take either.
