Not receiving notifications from Messages and Mail

1. Dear Apple Support Community, I'm experiencing a critical issue with my iPhone 16 Pro Max running iOS 18, where I'm not receiving any notifications. Despite extensive troubleshooting, the problem persists. and this issue is only withe the messages and mail application Here's a summary of my situation: Issue: No notifications appearing on my iPhone 16 Pro Max
2. Duration: Ongoing for 3+ months
3. Steps taken: Worked with 3 different senior advisors

• Current status: Apple engineers have been "looking into this matter" for 3 months
• Support has stopped responding to my emails
• I've tried the following common solutions without success: Checked Focus mode and Do Not Disturb settings
• Verified notification settings for individual apps
• Ensured the phone isn't in silent mode
• Checked background app refresh settings
• 
  
• Confirmed proper network connectivity

This issue is severely impacting my daily life and work. I urgently need a resolution or a clear timeline for when this will be addressed. If a fix isn't possible soon, I request information on alternative solutions or compensation for this extended period of diminished functionality. Can anyone in the community offer additional insights or escalation paths I haven't yet explored?

Thank you for your attention to this matter.