Any one filled H1b through Gva Infotech Inc??

I have filled through Gva Infotech Inc but have not received any update on H1b processing. Case status is in received status.

Please share your experience.

My h1b was picked in potter in April 2017 in lottery … it has been more than 20 months but no update on the case . My employer GVA infotech suggesting to go for premium processing . Any thoughts ?