Can anyone tell when the next bonus lands?
Each spin of Magician's Secrets lands on a random 6x4 grid, so the bonus round can come on the first spin or not at all. How often it comes is not known in advance. The result of one session is random whatever the RTP, because the return is only an average over a very large number of spins.
The reels pay according to one of two RTP versions, and the game rules are the only place where Retrobet Casino shows which version is live. Open the rules before you start a session and read the RTP there. A figure you remember from an earlier visit does not tell you what is running now.
Most spins on the reels end well below the top prize, and the maximum win is a ceiling that is reached very rarely. It needs several things to line up at once, such as expanded Wilds with high multipliers inside a bonus run. Build your expectations around the ordinary results, not the ceiling.