This week's edition of Commercial weekly highlights includes: analysis of the court’s decision in Little v Olympian Homes Ltd which considered whether email correspondence or the party’s conduct gave rise to a waiver of a party’s entitlement to contractual interest, news that the Regulatory Policy Committee has reviewed the Department for Business and Trade’s impact assessment for the Product Regulation and Metrology Bill which covers UK product safety, regulation, and metrology framework, and news that the International Chamber of Commerce has published the 11th edition of its Advertising and Marketing Communications Code.