A few days ago the courier delivered a parcel from Mainland China. He said there was 30 dollar surcharge. I was in a hurry and paid without without checking the receipt. Later I couldn't find the surcharge mentioned on the receipt so I suspect the money went into his own pockets.
Soon I will be expecting more parcels delivered by the same courier. I want to keep a good relationship and avoid paying the surcharge. If I were to tell him straight that I want to see the surcharge on the bill he might be offended and treat the parcels in future in a less careful way (it's just like you don't want to offend the people serving your food in restaurants). Do you know a good way to save him face?