Please carefully look at the pictures.
i've seen the pictures and i see that there is some kind of defect.
But again let's see your conversation in another example like a car dealership:
Hi, the whatever kind of my car broke down, can you give me a new one?
Yes, of cause. Let me look at my spare parts list, what it will cost you.
WTF is wrong with you c... i never told you that this might be a warrenty issue so f... you, give me the god dawm thing and compensation or i will sue your ass off.
And with this kind of behavior you think they will be nice and obey your orders as they were god given?
Be nice, tell them what happend and they would likely respond the way you want in the first place.
I f.... up my BB and by beeing nice i got a free replacement.
You can be happy that they even respond to your mail in this nice way. Would it be my company, your mail already be in the trash can. And good look trying to sue a chinese company from i guess Switzerland for a 5$ saddle clamp.