Bought a set of IIIPRO Peerage

brakeset on AE. Upon receiving, I tested the lever and found a leakage in one of them. Contacted the seller and this is what they say:
08/01 15:21
你安装好使用就可以了,测试好发货的,重来没有漏油过,插入线的时候插到位置锁紧螺丝就好
Just install it and use it; it's been tested before shipping. There has never been any oil leakage. Just insert the cable into the correct position and tighten the screws
Haha.
AE has accepted my return request though.