Taking your time is probably the best decision here. Payment processing for iGaming can be complicated because regulations differ considerably between Southeast Asian markets. I would first shortlist providers that are properly licensed and explicitly support your business category. Then compare settlement schedules, chargeback handling, reserve requirements, transaction limits, and dispute procedures. It is also worth speaking with existing merchants who have used the provider for a reasonable period. A smooth onboarding process doesn't always mean you'll receive the same level of support once your business starts processing transactions.