When the bank pays the loan to the developer, it means that it has a loan relationship with the bank before, and it has nothing to do with the developer, because whether it is a loan or not, the developer will collect the full amount anyway.

Anyway, you need to pay off all the money in the house within the specified time. So it doesn't exist, and it is owed to the developer. Quite now, I owe money to the bank, which just mortgaged your house.