1GB for DNA is a lower bound. That’s how much it takes to store the abstract base pair representation. There’s lots of other information you’d need to actually build a human and a lot of it is common to all life. Like, DNA spends most of its time not in the neat little X shapes that happen during reproduction, but in coiled up little tangles. A lot of the information is stored in the 3D shape and in the other regulatory machinery attached to the chromosomes.
If all you had was a human genome, the best you could do would be to do a lot of simulation to reconstruct all the other stuff. Probably doable, but would require a lot of “relearning.”
The brain also uses DNA for storing information on the form of methylation patterns in individual neurons.
There is a conversation going on about her on the CI Facebook page that seems to indicate that she has been in contact with them. According to info there, her name is Kim Suozzi. Also they will set up a fund at CI for her, once she becomes a member and they vet her story. So If you are considering donating, but worried its a scam, it might be best to hold off until then.