If you buy a house, you can only apply for a bank loan if the developer issues a copy of the full invoice. After bank loans and other bank loans, developers will also issue invoices.

Once the invoice is lost, it is likely to affect the loan processing, so the original invoice must be kept well, preferably with a model. The words on the invoice will be blurred if they are kept for a long time. In addition to keeping the original invoice, you have to make several more copies to keep it.