USCIS case status is not showing any thing

I have applied H1 transfer through premium processing on 05/13. I got the receipt number on 05/15. But today status is showing as below.what does it mean? Please help me

	At this time USCIS cannot provide you with information for your case. Please contact the NCSC 1 (800) 375-5283 for additional information.

I don’t have any idea