The UK’s Competition and Markets Authority (CMA) has recently launched an investigation into the treatment of customers by online gambling companies. This is in response to concerns raised by the Gambling Commission that certain aspects of behaviour by online gambling companies, including misleading promotions, unfair terms, and the blocking of payouts might be breaching consumer protection laws. The investigation forms part of a wider joint programme of work between the CMA and the Gambling Commission tackling issues of fairness and transparency in the UK gambling industry.