This is from 《太平广记》：赐金帛，加秩二等。
The main story happened in Tang Dynasty. Su Wuming caught the thieves who had stolen from the Princess. The Queen wants to reward him by 赐(bestow)金(gold)帛(silk)，加(promote)秩(?)二(two)等(levels).
My question lies in 秩, which can mean both 俸禄 (salaries from official services) and 官职、品级 (official position or its rank). There should be a norm on what 加秩二等 means. I don't know but my thoughts are as follows:
品级: Since 赐金帛 is monetary reward, it's natural for a rank promotion to come along. But then Su Wuming is already 湖州别使. I'm not sure which category 湖州 belongs to. Even if it's a 下州, Su is at the rank of 从五品上, promoting 2 ranks from that is a huge jump. It seems too big a deal for catching some thieves and regaining stolen stuff (its value 直黄金千镒 is mostly an exaggeration). Maybe it's a common thing in the feudal dynasties.
俸禄: It also seems to make sense. 赐金帛 is one-time, while promoting the salaries is long-lasting.