2. Then use installment payment when buying the goods of the merchant.

3. After the DOU installment is started by the merchant, the installment option will only appear when the total order amount reaches 200 yuan in the payment process.

4. In the installment option, users can choose not to installment, or divide it into 3 installments, 6 installments and 12 installments, several of which can be interest-free, and then choose interest-free payment according to the options.