The car rental company didn't recognize the international driver's license provided by Zuzuche, and we were stuck for half an hour. Luckily, I had a notarized translation prepared, but then they said it wasn't recognized because it was from a Hong Kong notary. They claimed that Hong Kong is Hong Kong and mainland China is mainland China, despite the first page of the document clearly stating that the legal effect applies to both. Eventually, after requesting the supervisor and waiting for more than half an hour, I managed to persuade them. This was the most disappointing part of the trip. Zuzuche and the rental company should ensure mutual recognition before confirming orders. Fortunately, I had prepared the notarized document just in case. However, being lectured about the difference between Hong Kong and mainland China in a foreign country was absurd and nauseating.