Buyer contacted me about a factory refurbished phone I sold. He said it was not working due to an FRP lock. I sent him numerous messages through eBays messaging system directly after he contacted me offering help. Sent him the Youtube video to unlock the phone. I asked him to let me know how everything worked out. He never responded to any of my messages. 2 days later I get angry email asking why I never responded. I told him I had responded and even sent screen shot of my sent messages to him for proof. He then tells me he went out and chose to spend $20 to unlock the phone which I believe to be an extortion attempt. I would have given a refund if not satisfied.
Block this guy if you're on eBay because he has tried to extort other sellers and they're listed on this same site.