I bought an expensive mobile phone in Chinavision.
I had to send the device two times, as first they have send me back the device in exact same condition without repairing anything.
I have sent it once more, after providing them a few videos with the GPS problem reproduction they said they will send me a brand new one - of course they have sent me exactly same broken device back,
Unfixed and did not even had slightiest decency for reimbursing for the costs of 1st return. They have explained that they rely on the producer tests after repairs while they state on their page they perform a Quality Control before sending back, and that seems to be a lie.
They have explicityle written they rely on the producer feedback!
Also they require Tax payement receipts so they attach it with the package (they say they do) on the return after fixing; to ease customs processing - BUT THEY NEVER DID IT, they have never attached my receipt and I had to explain and prove again and again that I had paid customs already and send the receipt on my own.
I do not recommend using they services as I have never been treated so badly by a seller.