Banbury were 1-0 down at half time through a 17th minute goal.
The deficit was doubled three minutes into the second half through a penalty kick.
A Trialist pulled a goal back for Banbury four minutes from time
Banbury United: Alastair Worby, Charlie Hawtin, Eddie Odhiambo, George Nash, Lee Henderson, A Trialist, James Watts, Giorgio Rasulo, Denilson Da Silva, Pablo Haysham, Amer Awadh. Subs: Jack Westbrook and Jacob Blackstock