HR's on here, please suggest.

I got hired in September 2018 and my H1B petition has been pending since then (upgraded to premium in Feb and received an RFE in March). I spoke to my hiring managers during the interview process and haven't talked to them since. Would it be okay to ask the HR if could touch base with them? I do not have their emails so cannot directly email them and so have to go through the HR. Please suggest if that is an okay thing to do, just want to touch base and stay in contact and know what their plans are for me since it's been so long.