A little information that I'd like to share as I feel I am going crazy.
I sent in my application and sent original documents;birth certs, marriage certs etc of ancestors (that i confirmed was okay to do). I'm applying based on Irish Associations of descent (but not close enough to register in FBR).
They've now asked me to send a certified copy of my birth certificate, my father's and my grandfather's but I did indeed submit those documents with my original application (in fact, they returned them to me in the letter asking me to provide them!!).
Now, i've asked a few times why as they were included and the response i get is; i've been asked to inform you to submit your birth certificate, father's and grandfather's (all documents which they already have!).
