I accidentally locked my sim card
How to stop ppl from stealing my info
See this Apple article: How to unlock your iPhone for use with a different carrier
How to unlock your iPhone for use with a different carrier - Apple Support
Apple can't unlock your iPhone for use with a different carrier. Only your carrier can unlock your iPhone.
You need to contact your Carrier.
Or do you need the PUK code?, See this Apple article: Use a SIM PIN for your iPhone or iPad
Use a SIM PIN for your iPhone or iPad - Apple Support
How to stop ppl from stealing my info
Never jailbroken your iPhone.