Not sure what you're looking at, bit for concurrent filing, it's $1440. I double checked on USCIS website.
So, as I said:
1. Get a MO this time.
2. You're governed by the new fees: $3265
1. How much $ did you send with your original petition?
2. If you look at the top of the image I uploaded, you'll see "dates." So, right now, you're governed by new fees (right column of the image).
Make your decision. You can choose to eliminate EAD or AP to lower cost. I wouldn't advise such.
You can also Google "USCIS fees calculator" and confirm the costs
I thought adoption happens in the country of birth?
I don't understand how Nigerian law applied to this kid. How would Nigerian authorities even decide that?
I think you should have first adopted in the Philippines, then apply for Nigerian PP