OK here's a slightly different slant on the experience that I had with DH Gate.
I bought a mobile phone from their site (Runbo X5) at a very reasonable price, however when you look closely at their description and photos you realise they are selling a copy and not a good one either of the phone you paid for. I quickly got onto the DH Gate site and told them of the problem and although they tried to convince me to buy the phone I'd ordered, I did get a written assurance that they would refund me the total amount. We'll see and I'll let you know.