First, you have posted to a user-to-user site. We are all users here.....just like you. Apple is not here. They will not see your post or reply to you.
We have no control over decisions that have been made by Apple, if you were thinking that we might be able to "overlook" Apple's decision to not unlock the phone. The phone will remain locked.
You would have needed to have been the original owner of the phone, and the seller must have been an authorized Apple dealer.
An iPhone 13 that you bought 9 months ago was not "new". Apple discontinued the iPhone 13 in September of 2024, so your phone was at least 13 months old and likely much older than that.
If you bought from an authorized Apple dealer, you will be able to find their name when you look through the list of authorized dealers using this link:
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