收到退货后故意不确认收货，拖着不处理退款怎么办

可以投诉卖家，投诉方法如下：
工具/原料
电脑、淘宝账号
1、打开淘宝，登录账号后，鼠标指向我的淘宝。

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2、选择已买到的宝贝，找到有问题的商品。

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3、点击投诉商家，输入投诉原因。

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4、点击未承诺履行投诉，准备说明等资料，点击提交投诉申请即可。

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也许事情并不是像你想的那样，只是因为卖家要处理的事情太多，把你这事儿给耽误了。既然是自己的事儿，你可以直接联系卖家，催对方尽快退款。如果对方还是不办理，你可以投诉对方的。