Non-deductible handling fees - During the Spring Festival this year, Mr. Han bought a laptop for his girlfriend. Although the price of 12,000 yuan was not low, for Mr. Han who had just received his year-end bonus, it wasn't a very large amount. After swiping his card, he received a text message from the bank. In addition to reminding him of the amount of the recent card transaction, the bank also "kindly" suggested using its interest-free installment payment function. Mr. Han...