Hi, update. I received this response from Daji:
"hi friend
We checked the case, its data is no problem,the appearance of the case is indeed deviated, we are willing to take responsibility,but your order can not ship sapphire glass case,because the other sapphire case all by the same problem, only by the mineral glass,
Is it OK? If OK, i will ship it and refund 30USD to you,
If you do not agree, for us will be refunded to you, waiting for your message, thank you
best regards"
so I decided to accept the offer. Forum members I thank you very much for the help, it seems that Daji is sensitive to the views expressed on the forums.