A classic quotation of refusing to bargain with a friend Pinduoduo.

This is really annoying. Suddenly someone came to bargain with you. I met a stranger before. In order to bargain with me, you kept sending me messages, so I ignored it. Later, she stopped looking for me slowly, probably because I deleted her.

General reasons for refusal: I haven't downloaded Pinduoduo, I don't know how to use it, and I don't have an account. I'm really sorry, I really can't help you. I'm sorry. I never take part in such activities, so please understand. People with a little brains will understand as soon as you say so.