2. If you are suspected of being blacked out or unable to contact the manual customer service for other reasons, you can try to call the official customer service number in Pinduoduo for consultation.
3. In Pinduoduo's mobile phone application, you can find the option of "contact customer service" or "help center" and report your problem to the official customer service, which will help solve the problem and provide further guidance.
4. If it is a commodity problem, such as delivery error or other quality problems, you can click "Apply for after-sales" on the Pinduoduo order page, select the corresponding refund or return reason, and fill in the relevant information. After submitting the application, wait for the approval of Duoduo.