Player's complaint
Editorial note: under UK AML regulations, operators must request source-of-funds documentation above defined thresholds. The cited £150 lower threshold and £500 enhanced threshold (per 30-day rolling window, in net-deposit terms) trigger escalation. A common complaint pattern involves customers caught off-guard by a request that appears mid-session, often during or after a winning run. The escalation is mandatory for the operator and not discretionary; refusal to provide documentation results in account closure with original deposits returned. Educational point: always respond to documentation requests promptly to avoid prolonged account holds.