I haven't delivered the house yet, and I found something wrong with the property.

1, whether you accept the house or not has nothing to do with your loan. You should continue to repay the loan. Unless you apply to check out.

The problems you mentioned do not constitute the factors that you refuse to accept the house, unless the house itself has quality problems. What you said belongs to the software problem of property management, but the house itself seems to be fine. If the property management is not in place, you can go to the competent department to complain about the property, which has nothing to do with the quality of the house built by the developer.