They wouldn't help me because of I used my mother'...

They wouldn't help me because of I used my mother's address I have a new born son and kern family called my house for a month to get my new born set up and finally I had the time to do it and they can't help me? My son is preemie he needs to have his check ups he hasn't gained any weight at least it looks like it and I need to know what type of formula I could use for him I've tried to different ones and in order to go take him to the doctor I need insurance for him and I can't get it because of an address when I always give out two!