Faulty equipment

I bought 3 MAx31855 temprature amplifier and found a short on all of there breakout boards on the thermocouple side . It's upsetting that these guys have not tested their stock. What's even more troublesome is that the 3 thermocouplers also have a ground short on all of them . I've advised them and they were prepared to collect but i'm afraid they'll just send me new "faulty" stock . I'm great full for this but the point is TEST YOUR EQUIPMENT FULLY

Will source my equipment somewhere else .