Its the risk of purchasing any such products online from
ebay or elsewhere.
You take the risk of the seller lying to you.
You take the risk the phone is unlocked, but damages so can't be used.
You take the risk of getting an empty box when it arrives.
You can not tell if its unlocked just because someone says so, you want proof
ask them to do a video showing the phone is unlocked and sims can be changed and
to show you the about info of the phone being unlocked and again when sims are changed
and to show you what firmware its on and ios.
Problem is no seller going to go through all that hassle for one person.
It could only be unlocked due the firm ware by Two Ways
1. Bought from apple straight out
2. Bought straight out from a retailer and then paid for a unlock or free
from certain carriers.
So you take the risk is all and paypal has a dispute option so you can get your money
back, i pay by credit card through paypal cause my credit card like most cards (not all)
all for money back if you get ripped off. Paypal can take weeks to get money back.
So again its a risk you take.