Confirming our elimination from the competition, Travis Binnion's side did take the lead through Bendito Mantato, as he smashed home the game's opening goal.
But two strikes late in the first half from Emmanuel Sonupe and Darius Lipsiuc quickly flipped the scoreline on its head at the ARMCO Arena.
Bradley Stevenson then added a third for the National League outfit, before Sam Bowen scored late on to put the game beyond us.
FIRST HALF
Called into action at Academy level, Ayden Heaven produced a wonderful goal line clearance with the game only four minutes old, as the United defender denied Joe Sbarra with what looked to be a certain goal.