I have bought off them, I got what I paid for with a lot of hassle involved. I will never buy from them again. It took them Five days to get me One million.
I had 78 mining too so none of that "Not high enough " stuff.
There defense to that will be "Well we are very busy at the moment that's why it take's so long". So we all might as well go to different sites that don't have just a load on their shoulders. If you cannot do it in time, Don't do it.
You'd think people in Hong Kong would have some intelligence. I suppose not.