Why can the platform repay after receiving the information of creditor's rights transfer?

When you are overdue, your arrears platform will be fruitless after a period of collection. Will package your debt to a third party at a low price. There are two kinds. One is that the third party has discounted the arrears platform under your debt. As for the interest charged by the third party on your principal, it has nothing to do with the arrears platform. The other is a platform where the third party will allocate the principal plus interest after your collection to your arrears in proportion.