UPDATES:
well after such delay they have replied back
after submitting pictures and information they requested they have offered to replace the 3 bad fans and send out new replacement fans
I understand you are a new customer, and were upset to receive the AntMiner S4 with the 2x non-functional fans. We do apologize for the inconvenience. The units are tested before shipping, so usually there are no issue.
As a courtesy, in addition to the replacement fans shipped today, we would like to offer a discount on future order as well a free item shipped with the replacement fans today."
so in the end they are attempting to make good on a bad situation, the future discount is nice but after this ordeal leaves me very wary on ordering again, in my opinion more care needs to be given into the products they sell or some sort of limited warranty should be added to cover issues like this, cause the condition of these fans should have never passed any type of test or inspection