These was a greenland previous post message and in these post he said he is approved already.
Don't too worry, you will be fine
I was under the same situation, got laid off in H-1 and find another job two months later. I didn' t pay the $1000 and INS didn't gave me RFE, but I have the GC now. Usually the employers wouldn't bother or even don't know to inform INS when they fired you, so don't worry.
Greenland why are posting a fake approval.