Foster care says i don't exist!!

I've been fighting with them for over a year just trying to get any records they have . When i first reached out it was to get my birth certificate, i mean as a kid i never thought about stuff like that . You would think my file or paperwork would go with me ,from placement to placement, social worker to social worker . So the first conversation i asked for my records and gave them my name ,the response was e mail a copy of my birth certificate, my response, uh that's what I'm asking you for !! Well we can't release any information without proof of who you are ..so again i told them they have all my paperwork! Same response. By now I'm pissed so i hung up .But i really need things like my birth certificate to do anything, can't get ss card or anything. So i tried again and finally got someone to listen ,gave her my name and like 20 minutes later she tells me they have no records for that name . I'm like lady i spent 14 years in your damn system ,no records? Well sir are you sure that's the correct name ? It's the only name i have lady ! So i ask can you check if any of my fosters have that last name maybe i just picked it up,well sir i can't do that because we don't have any records . So now i don't even know for sure what my damn name is . I gave her a couple of the foster families names but they can't release any info on the fosters . I give up guess I'll just live under the radar like i don't exist