Personally, I think this may have something to do with the operation of the bank. I suspect that it is for the convenience of the bank, but it may also avoid risks. First, it may take time to transfer money, and you can only help you complete this business when it arrives. If it takes half a day to arrive, it means that you have to wait for half a day to enter your account and make a bill for you. I don't think you want to wait that long. Second, it may take time to transfer money, and there is no way to explain which house maintenance fund to pay. It may be more troublesome to confirm the source of funds, so it may not be desirable to pay maintenance funds by transfer. At least, in most cases, I pay more in cash. Unless a large number of houses pay maintenance funds together, such as development enterprises paying maintenance funds, checks or credit vouchers are used, and other methods are generally not used.