1、个人投诉的应有本人签名的投诉书、身份证,也可以口诉,但要作笔录;集体投诉的应有集体联名签字的投诉书;如派代表投诉,应有3-5 名代表,其中至少一人应有身份证。2、要有凭证,如购物发票、信誉卡等; 3、有关实物; 4、村以上的介绍信,或有关遭受损失等情况的说明、证明。 1, the individual complaints should be signed by the complaint letter, ID card, you can also speak, but to make transcripts; collective complaints should be collectively signed a joint complaint letter; dispatch representatives should have 3-5 representatives , At least one of whom should have an ID card. 2, there must be vouchers, such as shopping invoices, credit cards, etc .; 3, the physical objects; 4, the village above the letter of introduction, or the loss suffered such description, prove.