In fact, I'm quite often disappointed by what they sell on ebay. A couple of times I was cheated on the authenticity of goods and money transfers, it was very frustrating (although it was a long time ago). In fact, I was much less savvy in the Internet and financial areas, so it was pretty easy to get cheated. My salvation was the financial blog https://askwallet.io/wirex. It was the one that helped me stop being a sucker.