进入拼多多的APP，在个人中心的设置里面的意见和反馈中有服务投诉，选择投诉的一个理由，点击确认投诉。
1、打开手机拼多多APP
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2、点击右下角的个人中心
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3、点击个人中心中的设置
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4、点击意见和反馈
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5、点击服务投诉
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6、选择投诉的一个理由，点击确认投诉
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注意事项
1、投诉卖家的时候需要保存一定的证据，便于以后的提交。
2、投诉理由选择错误的时候可以进行重新选择。