By Tori Swann & Simon Barnes

The Competition and Markets Authority (CMA) has 90 days to respond to a super-compliant lodged by the Citizens Advice Bureau (CAB) over its concerns that customers are suffering across a variety of sectors as a result of loyalty penalties.

Specifically, the CAB, which lodged the complaint on 28 September, is concerned that loyal customers who stay with their providers of certain products, such as household insurance or mobile phone contracts (often on default or roll over contracts), can end up paying significantly higher rates than new customers who are often enticed with more favourable offers and rewards.