I've used DX for years without problems. The first time I had a problem with a missing part in a product, the company conduct became clear in these cases. Customer service was unresponsive, just stalling my request and asking for evidence of the missing part (how is that even possible?). I did not even request a refund or new shipment, but just the a compatible item to replace the missing part. The final touch was when they refused my product review. Now I understand why after months of availability this product does not have a single review (but a 5 five star rating!).