Nope, nothing similar to these. I did not use any kind of strategies to gain advantage. Dont forget that the reason they dont pay me is because according to them they have indications for multiple accounts, nothing wrong with my bets etc.
Using of strategies isn't prohibited by any gambling casino as far as I know, and that won't be an issue even with Rollbit, but surely use of bots isn't liked by the casino and thus one should never ever use a bot for the purpose.
If they believe that you have multiple accounts and you're sure that you don't own multiple accounts then you may not worry. Just cooperate with them as much as possible by being gentle and honest, and when they get confirmed that you don't own multiple accounts then they might release your payment.