Identity Hijacking

The one that occurred on Saturday, 4/15/23, around 7pm ET.  My phone locked and I was told to go directly to a T-Mobile store.  THere, the rep got me back into my phone.  However, upon leaving the store, my phone esim card locked again, making it unusable.  I was given no detail other than that this was the first time that anything like this had ever been troubleshooted by the owner of the TMobile store.  I have had zero follow up from TMobile on things that I should do to prevent this from happening going forward.  I've had no communication with TMobile despite their knowledge of what happened.  I am still fully at risk I suppose?  My FICO score certainly took a nice dive.  Probably certainly because of the hacker/hijackers access to my bank accounts (new accounts, etc).  just curious - is this normal?  If so, then I should be fine doing nothing I'd think, LOL!  That's how TMobile is handling the situation.  HAHA  bogus.