Gambling businesses like any other business are required to offer alternative forms of dispute resolution like mediation

Businesses need to make ADR available for quick, cheap and effective dispute resolution. It is to the advantage of all involved to ensure a dispute is dealt with well in a timely fashion so it does not fester and interfere with progress and production.
See this helpful guide: https://www.businesscompanion.info/en/quick-guides/business-information-other/alternative-dispute-resolution