I once had it explained to me in a way that finally clicked:
What if beings from the 42nd dimension wanted to observe life on our planet? The problem is that they're from the 42nd dimension, so they can't just sit and "watch" us in our basic four-dimensional world. However, what they can do is stir up electrons in our atmosphere until they start a lightning storm. Then they can "observe" the lightning. It turns out that they can learn a lot from the lightning itself, but at the same time it may have some effect on life here on Earth.

Only if you are super poor enough to qualify, and have time and the capacity to jump through all the hoops to get one, and you live somewhere that there is a provider that has coverage, and ect, ect., then you can get a discount on your cell plan. For some people who are "lucky enough" to be super poor enough, the discount can actually be enough to make the phone essentially $0.