At last, I finally got an authenticated copy of my birth certificate. It wasn’t easy because my birth certificate has no first name. It is only on the affidavit that I was named “Carol”. So to sum it up, here is what I did:

1. Day 1. I went to the Local Civil Registry Office (LCRO), where my birth was registered, to apply for a Supplemental Report. I gave them my old birth certificate, together with the affidavit. They made me a new affidavit and had it notarized. They asked me to go back after a week. (Time spent: 2 hours, VL)
2. Day 2. I went back to LCRO. They gave me a copy of my birth certificate with the corrected first name. To have it authenticated, I need to submit these to National Statistics Office (NSO). But when I went to NSO, I saw long lines of people so I decided to go back another day. I didn’t file VL for this. (Time spent: 1 hour)
3. Day 3. More details in Birth Certificate Step 3. (Time spent: 3-4 hours, VL)
4. Day 4: I went back to NSO and got my birth certificate! (Time spent: 10 minutes)