OiSTER is a low-cost telco brand CO/PLUS developed as a sub-brand for 3 to take on competition in the 3G market. OiSTER's playful and humours brand universe was developed to appeal to younger audiences. It is one of the most liked brands in the country with over 450.000 customers. While one of the best performing advertising universes, its use had grown broad and ubiquitous, adding settings and characters beyond what was necessary. With the Wellerman sea shanty campaign we refocused on everyone's favourite oysters and their natural habitat and returned to the roots of what made the brand universe so successful to begin with. The campaign achieved 61% ad recall, 85% sender recall and 56% think is the spot is "good" or "very good".