Use DuitNow — direct from any Malaysian bank app, instant, free, RM 1 minimum. No top-up step.
TNG is the most-supported wallet (every casino we reviewed accepts it) and clears in under 90 seconds.
ShopeePay works at 6 of 11 operators. Slightly slower (2–5 min) and a 0.5% withdrawal fee at some casinos.
GrabPay sees less casino acceptance but the few that do support it (We88) treat it the same as TNG.