What do you mean by settlement agreement?

the settlement agreement is that the user unbinds the bound settlement agreement.

Simply put, the settlement pass card is used for merchants to settle accounts, which is convenient for merchants to collect money and remit money. In addition to the functions of ordinary cards (such as deposit and withdrawal, transfer), the settlement pass card also includes some new service functions, such as free handling fees for cross-regional transfer, free handling fees for others to transfer to you, and handling transfer business at the counter or ATM.