I complained on Sunday morning and they responded on Sunday evening
And they called the manufacturer on Monday and on Tuesday, the manufacturer said they will send me the whold hardware set
I really thank you them and will buy another product from this seller if I have to buy something
The seller really tried hard to fix everything and contacted me very often to check the correction status
Great chair, would definitely buy it again
Through the hole of the box, most of the hardware were slipped and missing