Did not sign offer letter help

Hi guys,

First of all thank you for your time. I know this is so stupid. I got a summer internship in a MM shop and I signed their letter. Few weeks later they asked us to review a new letter since there is a salary increase, and I thought I only have to read through it so I only click “ done” without signing anything in Workday. Then I never heard from them regarding onboarding. Today when I review the document I realized that I did not actually signed the new offer. I did everything else but signing since I did not see any place to upload a new document so I didn’t sign it when I see the new offer letter. I emailed HR but didn’t hear back yet, wondering if anyone had an idea on what should I do now and if the company just assumed that I didn’t take the offer…. Thank you so much for reading