It appears that you are just trying to use a person's disability to get some sympathy.
Your update states that you "never said it was a phone bill". Well when you are talking about having the phone being cut off, what are people supposed to think? Which makes it appear that there may be a lot more to this story than you are saying. The other interesting comment is right at the end of your update.
When a company can keep connecting and disconnecting because they do not know how to apply payments is a ripoff
With the comments of this and about her being charged late charges. It seems to say that she is NOT paying her entire bill and is trying to apply what payments she is making to only one part of the bill. That is if she has Cable/Internet/Phone she is trying to apply payment to the phone portion only. Unfortunately if this is a "bundle" that is not going to work.
This also brings up another question. Why if someone is on only $600 a month disability why are they even paying $159 a month for services, where all but one is really a necessity? That is over 25% of her monthly amount. Because with her income level she sounds like she would qualify for "lifeline" phone service(may be called something different where you are but they should get the idea). This would be either provide free or very low cost phone service to low income people. That then would allow her to have the phone for emergencies.
If you think that everyone is reading this wrong then perhaps you should post more details as to what the "errors" are, and exactly what she is trying to do.