unlocking my iphone x

How to unlock your iPhone for use with a different carrier - http://support.apple.com/HT201328 - Only some carriers offer the ability to unlock iPhone for use on any carrier. Follow the instructions in this article to unlock your iPhone.

iPhone: Wireless carrier support and features in the USA and Canada - https://support.apple.com/HT204039 - including a list of which ones offer unlocking.

There are two other kinds of device "locking" including the aforementioned activation lock, and a device being disabled by trying the wrong passcode too many times. Since you seem to mention a service provider I am assuming it is a carrier service lock. If that is not correct, you need to be more specific in your description of the issue.

Apple doesn't remove carrier locks. Ask Rogers.

If you're referring to the activation lock instead of a carrier lock, you'll need to be the iPhone's original owner and have its purchase receipt.

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