no update after 15 days of noid response under premium processing

my petition has gone through 2 rfes and a noid. my lawyer responded to the noid responses and we have proof that the package was received and signed on 8th Feb, today is the 15th day and yet my case status still reads “notice explaining uscis action was mailed”. it has not even been updated to review yet. I work for a reputed us firm and have masters degree from an iv league college. I’m super worried as to why is the status not updating. any suggestions as to what could be the reason?

One of the possibility is tomorrow you may see some change .

As per this link

https://my.uscis.gov/helpcenter/article/i-filed-for-premium-processing-and-received-a-request-for-evidence-or-a-notice-of-intent-to-deny-when-will-i-receive-a-decision

It’s 15 days so you have one full day remaining .

Another possibility is that they issued another notice and the status might have quickly changed to review and then to the current notice you might not have noticed.

I am on the same boat of NOID has been responded by lawyer, but no email notification from USCIS. Can you please update what was happened to your case ?