回复：谢谢：皮匠老师的回复 ------在线等

The link I showed to you was a post here, which was not directly referred from the source.

I did not find such information from USCIS, which made me difficult to recommend people to follow it.

However, if the information is reliable, I would think it would also be helpful to solve your situation, although you don't have to send to that address.