Undercover: 10 of 12 vape stores sell to young woman without carding TSET helps fund efforts to stop underage tobacco, vape use in Oklahoma KOSU Government unveils measures to cut down underage vape sales Features and analysis Convenience Store For our undercover investigation, we sent under 18s onto the high street with hidden cameras. , Out of eight shops visited, five sold nicotine vapes to our underage secret shoppers. In several cases, Smithfield in Johnston County finds vapes in schools, underage sales found