"Unlocking iCloud-locked iPhone 16 Pro purchased 4 months ago: 4 months ago I just bought iPhone 16 pro. It was locked by previous owner before 3 months ago . What should I do?"
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Getting Into Anther's iPhone:
Return this:
Who is the seller? If Apple, then it was likely never disassociated from another's Apple Account. If off hand, or from a third-party site (i.e. ebay or Amazon), you have been scammed. So, contact the seller, prequeisng a return. If they decline accepting a return, then contact the site, seeing if the seller can be held accountable, and if you can get your money back. This is the site the seller should have used prior to selling it: What to do Before you Sell, Give Away, Trade in, or Recycle your Mac - Apple Support. The seller should have known better.