The “Market Guardian Experts” organization (Marktwächter) of the Consumer Protection Association Rhineland-Palatinate (“CPA RP”) announced that it has sent a cease-and-desist letter to two mobile game providers, Outfit7 Limited and Green Tea Games Limited, for an alleged violation of child-related advertisement laws. According to the CPA RP, the two mobile games offer in-app purchases for a price of up to 109.99 Euros and promote them with obtrusive pop-up advertising throughout the game. 1. Summary and provided arguments Outfit7 Limited received a warning letter…