I was really stressed out about a phone I bought on OfferUp. I was told it was unlocked. Yet after I paid all this money, I discovered that it was still locked to AT&T. So I started looking online, frantically looking for a way to unlock the phone. I was reading all of these horrible reviews about cell phone unlocking websites ripping people off. Then I had people I know telling me they knew someone that could do it. But they were wanting close to a hundred dollars. Then I came upon Cellunlocker.net. I was amazed not only by the price, but after I made the small payment required, I received an email with the unlock code by the time I got downstairs to walk the dog. I followed the instructions and now I'm writing this review on my recently purchased Note9 from a service provider that isn't AT&T.
Bottom Line: Yes, I would recommend this to a friend