@AliExpress I got a bad motherboard. It doesn't work, it's stuck on inital screen. I asked seller and waited days. Anything happened. I opened a dispute, prooved the problem. Dispute result was total refund to me with seller paying for return shipping. After dispute ended, seller just informed address and gone, he didn't leave shipping label or instructions to return. He doesn't read my messages anymore. I opened ticket in customer care. They told me they'd contact seller for return shipping. It passed 2 weeks and had no answer from them. Had to open other ticket, but meanwhile China Post Office stopped receiving packages from Brazil, and when I contacted them again, they suddenly changed their treatment. They started telling me that I had to return the product and only then I'd be refunded. I had to open an appeal, but since then I can't answer higher level. Their e-mail box is always full and I have to open other appeal everytime. Every appeal I get diferent answer for same problem!