If you get cold feet after a purchase from alibaba. I did, after the vendor I dealt with told me they couldn't fulfill my order until after the spring festival (very professional). Then the unit I was buying was hot pink (not my color). So I asked the vendor please any color but pink. The answer I got was totally unexpected. "Because the unit is in production now the color is pink". In other words, your getting pink, " like it ". Naturally, I tried to cancel. With the cancel button they offer you. Seller will not approve the cancelation. Says, we'll ship as soon as possible.
For me, I wouldn't have placed the order if I knew they were out of stock. Furthermore, hot pink should be a color to choose, not forced to accept.
There is no protection on this site. If you want to cancel an order they put YOU to work to do it. Some of the sellers on this site are very shady I won't use alibaba again.