Apple iPhone 16 128GB 5G 6.1" Smartphone Unlocked-Brand New Sealed

Someone hacked my sister O2 account, ordered this and it came to her address. O2 has refused to take it back or engege to take it back. After 3 months she has asked me to sell it. It may be locked, it may be for O2 only sim. Unsure as it is unopened and unused and new in the box.

eBay