I am trying to understand what type of social security she is receiving. If she has never worked, she is not eligible on her own social security record. She is not receiving on your record. Whose social security record is she receiving on?
There is a program called Supplemental Security Income that is for the disabled. It is a needs based program and one does not have to have worked and paid into it. The base amount for SSI is $721.00 per month. Income, resources and living arrangements affect the amount. Is this what she is receiving? Is her amount only $200.00 per month due to other income or living arrangements?
I will try to help answer your question, but I must know what she is receiving, either SSA or SSI, so that I don't give you the wrong answer.