Hello mgigs0409,
We see you have an issue with an alarm going off you aren't setting. It appears you've already walked through several steps and contacted Apple Support about this. You mention that you even reset your device to factory settings twice. One thing to confirm is when you reset your iPhone, did you test for the alarm before restoring any data?
If so, the next best step will be to get in touch with Apple Support again. They can do additional troubleshooting with you and further investigate on what might be causing this. If you restored your data after resetting your iPhone, you may consider backing up your data, resetting it once more. Make sure to test for the alarm before restoring your data. That will confirm if there is something within your backup or just part of the iOS that's causing the issue.
How to factory reset your iPhone, iPad, or iPod touch
You can reach Apple Support here: Apple Support
You can also find the support phone number for your region at this link: Contact Apple for support and service
Best regards.