Our app has been stuck in "Waiting for Review" for over a week now. We have submitted expedited review requests, but none of them have received a response. We also reached out through the Contact Us support page, but have not heard back either. What's strange is that during this same period, we submitted an update for another app under the same developer account, and it was approved in less than 12 hours. We believe there may be an issue on the App Store side. We are posting here in hopes of getting assistance from the engineering and review teams. Our app has been on the App Store for 7 years and has 10 million users. We need to deliver a critical bug fix and address certain review compliance requirements, but for reasons unknown to us, the submission has been stuck — something that has never happened to us before.