I placed an online order with this chinese company, who promised on their website to deliver within 7 days

<div>I placed an online order with this chinese company, who promised on their website to deliver within 7 days. I send mail to them on day 10, enquiring about my order. They replied that their carrier forgot about my order, but that they would correct it. It is now day 39, I still didn't receive my parcel, and for some unknown reason my tracking nr changed. When I try to trace it, I get a message that the carrier (China Post) is not responding. I do not think they really sent my order, but I know I lost my money.</div>