Get the temps right ... 82-84 on one side, 92-94 on the other ... seperate them each into their own enclosure ... provide plenty of small tight places for them to hide on each side of the cage ... and leave them alone for at least 10 - 14 days (no touching, handling, poking, playing, etc) ... then offer them each a small live hopper mouse over night.
99% of the time ball pythons that do not eat, don't because of husbandry problems ... fix the husbandry problems and the snakes will eat.
Also, stop the force feeding ... it stresses them out more than it helps which only makes the problem worse.
-adam