As a general remark, I am not sure it is fair to kind of blackmail (another China guy...; and not only on this forum as Gyro points out) this seller at a point where he has not even been able to respond or sort this out. Things may go wrong, any supplier may have DOA units, and he may (or may not) be very helpfull to sort this out. We do not know yet.
I think sellers, especially at this point of an issue, should be treated in a fair manner, and I dont think it is the case here, this is how this comes accross to me.