F2B need some help

[Geresh28 4]

Hello everyone i petition my son over 21 few years ago and I received a letter from Uscis saying my petition for my son got RFE due to late registration of his birth and second I’m using my hubby family name which different to my son family name coz my son is from my previous married.I do all the paperwork’s I sent back to the Uscis of what the name together with the proof that I did my DNA testing here in the US but still waiting for the test of my son from my country where my son is.As what the DNA clinic says here in the US that the USEM in Manila will be the one to received the kit and maybe check or process before the will forward it to St.Luke for my son to do the testing, it’s been quite awhile already since I do my testing here my questioned is,is there any way that I can contact USEM to check about the kits that the received from the LAb here in the US second is St. Luke open for bussiness?Hope anyone can help me with this problems I’m really worry as I already sent my RFE docs back to Uscis  but I  only include the proof that I do my DNA test without my son DNA test and the result.Again everyone I hope you can enlightened my worried mind as I know Uscis is very strict at the moment it took me few months to do all the paperwork’s for what the need hoping I don’t encounter any other problems.just ask some good advice here what I’m gonna do.thanks