同样方法打电话到 NSC representative 回复：技巧:打电话到TSC向representative询问,他们有用的

I tried the same number and was able to talk to a very nice NSC representative about background check. She was more informative than the national CS representative, but still was not able to provide more details than what I expected. I guess your SRC number will direct your call to the right service center representative.