hi,

i have 7 S9 and 2 R4
all of them working fine except first one S9 Batch 9
after 2 weeks from getting it i lost one board and they repaired it under warranty
after 2 months it stopped hashing again ( same board )
they told me it out of warranty so i send it to paid repair
after i get it and install it the all machine stopped working!
after reset i found the 3 boards stopped!!
i told them and they told me to send the 3 boards to free repair and they will cover the shipment cost
after 2 months one of them stopped again!
i send it to repair but they told me it damaged and cannot be repair or replace because it out of warranty
i told them to give me new board but they told me to purchase anew one from bitmainwarranty

i send message to bitmainwarranty to purchase a new board
i get answer from Ashli told me it will cost 175$ + 25$ for shipping
i paid using BTC
and after that he told me that he told me wrong price and the correct price is 550$
i told him to recover my BTC and i don't need this board
he told me ( My apologies I will go ahead and just ship the order to you. )

after i get my new board and installed it by 8 horus it stopped hashing!
i send bitmainwarranty a message from 2 days and i don't get response until now