Bottom freezer door will not stay closed.

SOURCE: bedroom door shot stay shut. can push it open.

I have dealt with this problem dozens of times. It can be very satisfying to fix, and it's not very hard to do.
On the door frame there is a little metal plate called a strike-plate. It has a hole in it that the plunger is supposed to fit into. (The plunger is the thumb-sized spring-loaded tab that sticks out from the edge of the the door and retracts when you turn the door-knob.) The problem is that the plunger is not aligned correctly with the hole in the strike plate. This is a very common problem. In older homes (say over 50 years) it is usually a vertical misalignment (that is, the hole is too high or too low). On some newer homes, there can also be the case that the door doesn't quite close far enough for the plunger to reach the hole. Get down on your knees and look closely at how the position of the plunger relative to the hole in the strike plate as you slowly open and close the door. (Careful you don't get hit in the head!) Once you identify the misalignment, here's how to fix it. Mark the strike plate with a sharpie to indicate where the hole needs to be adjusted. Remove the two screws holding the strike plate, and remove the strike plate. Use some tape on the door to hold the plunger in temporarily - this will prevent damage to your door frame while the strike plate is removed. Hold the strike plate in a vise and enlarge the hole with a file. If you don't have a vise or an appropriate file, find someone who does to help you.
And if the amount of misalignment is so large that you would have to enlarge the hole in the strike plate so much that it will obliterate one of the screw holes, then you will need to move the strike plate instead of enlarging the hole, but I'll stop there.