Finding the RTP version before you bet
Symbols land on the 5x3 grid with every spin, and six or more scatters open the free spins while three wheel symbols open the wheel bonus. How often either bonus comes is not known in advance. No run of past spins changes that. The result of one session is random whatever the RTP, so a quiet stretch says nothing about the next spin.
Each spin returns its share of the stake over a long run, at the RTP of the version in use. Which RTP version Pub Casino runs is shown only in the game rules, so read them before you bet.
Spins can build toward the top prize, which is capped at x25,000 of the bet, or A$125,000 at the A$5 example bet. The ceiling is reached very rarely, so it marks a limit on the game rather than an expected result. At the A$240 maximum bet, the same cap comes to A$6,000,000.