MINEHEAD newsagents Forbuoys has lost its licence to sell National Lottery tickets and scratchcards.
Lottery operator Camelot confirmed that the Park Street shop's National Lottery terminal had been removed after a Trading Standards' investigation into under-age ticket sales.
A statement from Camelot said: "Trading standards carried out routine test purchases on retailers in the Minehead area last June.
"Camelot was not involved in these particular test purchases but was informed by Trading Standards that Forbuoys had made an illegal sale."
The company said it was policy to remove terminals in such cases, but retailers were given another chance to apply for licence in a year's time.
The statement concluded: "We apologise for any convenience to our players but Camelot's message is clear - we will not tolerate underage sales."
Local people can still have a flutter on the Lottery at Regal Enterprises, in The Avenue, Alcombe News and Tesco supermarket.