American I-730 immigrants haven't received packages for a long time.

Don't worry, I'm from I-730, too. I waited for five months and didn't have any supplementary materials, so LZ doesn't have to worry. As for asking this question, I tried to look it up at that time, except for a large sum of money, there was basically no useful information. In fact, this kind of background investigation is generally no problem, provided that LZ is true and there is no special event record. It may take a while to estimate the situation of LZ. After all, you made up the materials later, so it is estimated that the investigation there is also strict. LZ, wait patiently. This is what I was waiting for. There is really no other way.