Vague past

"Even if he didn't know about it, so what? All the medicinal material merchants in Hai City listened to Li's words and cut off cooperation with ja Jiang. We, Qin's, just followed his orders." The other end was stunned for a few seconds, then replied with confidence. Hearing this, Tang Yuan's heart suddenly sank and he realized that he had been deceived, but it was too late now. "If Mr. Qin asks..." Tang Yuan asked the man's opinion hesitantly. There was another silence on the other end, and then...