Call your cell carrier immediately and report it. Unless you've installed BlackBerry Protect or similar software, there's nothing you can do about it. Only your carrier can cancel your SIM and blacklist the phone's PIN.
I hope that helps you.
- If my response has helped you, please click "Options" beside my post and mark it as solved. Clicking the "thumbs up" icon near the bottom of my response would also be appreciated.
My Z10 was furnished by BlackBerry but all opinions are my own.
