After premium period of 15 days H1B 2017,no decision has come,any chance of getting after 15 days

My employer has applied for H1B 2017 and uploaded on April 1st 2017 with premium processing.I have not received either receipt number or no decision has come.15 calender days are over .any body can guide

How can he upgrade to PP if the receipt number is not known?

Either the employer filed as PP, or he knew the receipt number and then filed as RP but later upgraded to PP.

Which case is it?