It can't be changed any more. At best, the bank staff made a slip of the tongue and vaguely agreed to an unapproved loan. The interest rate hike was unexpected. I hope you can understand, because there were almost no signs before PBOC adjusted interest rates. Think about it!

In addition, if you sue the bank, you are a relatively weak group. If your information is incomplete, the bank cannot approve it in advance. This goes back to what I said above. Bank staff are also ordinary people.

After all, both sides are responsible.