Customers/gamblers gambling at Norsk Rikstoto (gambling monopolist in Norway providing horse gambling products with potential gambling problems will be randomly allocated to receive a proactive phone call (encouraging them to change their gambling behavior - e.g., be lowering the loss limit) or to a control condition. Outcomes will be short and long terms registered gambling behavior.
Being identified (based on an algorithm used by Norsk Rikstoto/the gambling provider) as a high risk gambler at least 5 of the last 30 days
Previously received a proactive call from Norsk Rikstoto