C420 Operation Helin

"Mr Dahai, Old Witch is cheating again. The batch of raw materials she just collected were clearly B goods, but Old Witch gave out a receipt for A goods. " Zhang Wenlian could not find Yang Hsingchen, so she immediately called him.

"Oh, then what did the client say?" Yang Hsingchen asked.

"What else can the client say? He just acted as if he didn't notice and signed on it