Guandu District Sub-branch of Kunming Postal Savings Bank, Yunnan Province. Official website showed that the Guandu Sub-branch of the Postal Savings Bank in Kunming, Yunnan Province can cancel the mortgage. To cancel a mortgage is to apply for a loan from a bank, usually with real estate as collateral. At this time, the real estate is mortgaged in the name of the bank, and the trading center will give the bank other rights certificates. After the loan is paid off, the mortgage will be cancelled, that is, the mortgage will be lifted.