RFE response time?

My H1B transfer petition filed in premium processing on 6/9 got an RFE on 6/16 for unavailability of client letter. As of today 6/26, yet my employer/attorney have not responded to it.

Can some one share their experience/knowledge on how long usually does it take to collect the required evidence?

You mean response time from your employer? If they have the documents they should send it in immediately.

Yeah you are right, but my hard luck they have been doing nothing from 15 days :frowning:

Yea unfortunately no real answer for this. Its really upto them when (and if) they wish to reply.