The main point I want to emphasize is that when I withdraw money from the casino, it becomes mine. On the other hand, when I make a deposit, it's still my money.
I use my funds to place bets at odds like 1.01 and 1.1, both to rank higher and gradually build up my balance. The casino offers features such as rakeback, weekly and monthly bonuses, similar to what Stake does. However, these bonuses are calculated based on your performance since the last time.
The issue might revolve around rakeback, especially considering they have a calendar bonus that activates every 8 hours, boosting your rakeback for an hour. This could imply that making low odds bets during that hour is seen as abusive. It seems like you can only bet on low odds for 21 out of 24 hours.
For instance, if I bet $100 on 1.01 odds, I win $1, but it's essential to note that just because it's 1.01 odds doesn't guarantee a win. Statistically, I'm supposed to lose at least 1/100 times based on the odds. However, during that hour, I might also receive an extra $1 in rakeback due to the increased rate, effectively doubling my winnings.
However, I must stress that I'm speculating because I lack clarity on the exact reasons behind these actions being considered abusive. My suspicions arise from a similar situation I found in another post where someone had their balance taken. If the casino's rules are indeed as I speculate, it would be helpful if they were clearly stated for all players to understand, so we all had the chance to think “omg thats too complicated for me, see ya”.
I believe you should also try to look at the situation from the casino's point of view too. Because from their viewpoint, you're merely farming for the cashback/rakeback rewards and not actually using the site for real gambling. From the point of view of the business owner, you're a leech that's taking revenue out of the business, not someone who brings something into the business. What would you do if you had such a "customer"?