WJCO
Meme King
Why not just keep your half doors and have them buy you full doors? If the issue is worse than they fucked something up. And if they have had it that many times and had people flown in and still no issue, take it to another place. Clearly they don't know what they are doing.
It's a leak, it's not rocket science.
^^This is what I would do. Takes the headaches out of the equation and helps find the actual problem. Even if they won't buy the doors for you, try to find a used set for cheap even if color doesn't match just to see if it fixes the leak.