Dunkin’ Sued for Upcharging Non-Dairy Milk Alternatives – The Messenger【■全GA キーワード(倉庫)■】The suit alleges that the surcharges on soy, oat, coconut or almond milk options are up to 40% of the average $3.25 drink price at the coffee chain.2023.12.29 The suit alleges that the surcharges on soy, oat, coconut or almond milk options are up to 40% of the average $3.25 drink price at the coffee chain.