Deleting Facebook Account?

[Naru]

My friend made Sim Facebook Account, and she started adding people on it. Problem is, Facebook blocked her, and she couldn't access the account, and she needed to use her phone number. She instead used mine, but the problem is, the message didn't come to me. I tried searching for the account, and I couldn't see it, but I'm still worried. I want to delete it, but I can't, since it's still blocked.
Did something like that happen to you? Can people see the phone number? If yes, what do I do?