But in theory, you can return it, as long as the sales manager is willing to help you write a check-out application. So what you have to do is how to communicate with the sales staff and their managers. As long as he submits the check-out application, the leader will sign it. As long as you go to the bank to sign the loan in person, you can get a refund, as long as the other sales manager is willing to help you. Therefore, what we need to do is not to quarrel or sue, but to find ways to make the sales manager willing to help you.