kàn bù dǒng fèiyòng shí, ràng gōngzuò rényuán chá míngxì bìng guānbì bù xūyào de fúwù

看不懂费用时，让工作人员查明细并关闭不需要的服务。

When you do not understand the charges, ask the staff to check the details and disable any unwanted services.