iPhone 14 overheating, data usage increase, and unauthorized settings changes

I have done so, however, since my iPhone is being managed virtually, I believe “they” have access to passwords. I had a website redirect when I tried to login to my hotmail account, sent me to Microsoft exchange login (didn’t realize) and possibly set up on their device management platform and/Microsoft Entra as well. Logs have trial/experimental language consistently, but mot until today dis it show in settings. It appears my device is syncing to multiple unknown devices (analytics) also not showing in settings. accessibility features, mostly voiceover (shared across devices also on), but many other braille settings also toggled on and those do not allow me to toggle off. Verizon sold me what I thought was a new iPhone 14, recently after my BBB complaint, the Executive team reached out to offer me a new device. Semi-admittedly said it appeared they sold me a phone configured for a corporate client. Would that corporate client not let them know they had a device being managed by a non-employee?! Also have Verizon managed wifi and private wifi networks, for corporate accounts. Even when i turn off auto join, it comes back on without user interaction. This subsided 3 weeks ago when I had my 10th call with them. I have had numerous other issues. com.apple.verizon_lte_us trial/experiments. Neither will admit to this.

I also have web sites (domains) I have never visited and searches I have never completed. In addition, it appears someone has had access to my photos, texts, calendar and files. I believe Safari is corrupted. My phone appears to be linked to my moms and our system and apps also appear to “swap” to one another's phones.