cup holders = drink. drink = food. drink + food + range rover = disaster waiting to happen.
As for repairing it I have no idea, my RR doesnt have the cup holders in the back. I would suggest trying to gently pry it out again and look at the mechanism to see if you can figure why its sticking. If not look for any and all hidden screws to try and disassemble would be the advice I would give apart from the first bit which is no food or drink inside range rover!
-Wills
