The maintenance fund is collected by the state and used for the later maintenance of houses. Sending decoration money is to send money to decorate your house in the future. This is just a profit-making promotion activity conducted by an open merchant. The form of expression is cash back after buying a house (or handing over a house) for a certain period of time, but most of them are directly deducted from the house price! As for buying a house, it is necessary to pay the maintenance fund and the decoration deposit (refundable for the property) and so on. (provided by Snap online auction)