@KandaceKim
Geez......we can sure pick 'em sometimes....well at least he's the ex now. But you need to do some account security just to make sure he can't do any more damage. So after you deal with the CSA's and they can hopefully return your phone number to you (fingers crossed) change what you can in your account.
Assuming that you have already changed your password procede to change your security question and answer. Change your name for next year or so.......you can change it back if you wish to port out. You can also change your address (if applicable)as this info only matters for account verification so as long as you know the info That's what matters but write it all down and put it somewhere safe so you can access it if needed. This will help if the ex tries to access your account again thru customer support.
You can also change your account pin# and email with the CSA if you feel the ex has compromised your email and/or you just want to extra cautious. I would also change your passwords and any 2FA verification you may have on other accounts that the ex may have access to like PayPal, Amazon, financial accounts like your bank or credit cards etc....since you have found out how vindictive the ex can be it's best to assume the worst rather than suffer through additional heart ache caused headaches! Again write all of this down for the time being so you can access it.
You can access the last 30 days of usage in your account for any phone numbers you have been in contact with and Inbelieve you can go back 90 days by using the calendar dates on the usage page. If you backed up your phone to the cloud in the past you can look thru your data stored there once you gain access to your apple account. @LurganIeUk , @AE_Collector @Luddite and @CalgaryBen can help with more specific iPhone/Apple questions you may have.
Wishing you the best of luck in your phone number recovery. You deserve better and one day when you have so much better you will be able to look back at this time and realize had you not gone thru this you would have never gotten to where you are then.
