We have been facing some rejections from Apple and some of them can be resolved by following the steps Apple review team gave in the Resolution Center but some of them also needed further action.
If Apple review team keeps rejecting your iOS app and you think you already do everything per their requests in the Resolution Center, the next step is reaching out to the Apple review team.
We need to clarify with them on the rejection reason. Please follow the steps below:
1. Click this link and log into your Apple Developer account.
2. Select the topic which is App Review.
3. In the popup, click App Rejection Clarification. Kindly see my screenshot below.
4. Click Contact App Review.
5. Fill out the form and click Send and wait for Apple Review Team to get back to you.