对企业售后服务的投诉 Complaint about after-service
上海的许多大公司都专门设有售后服务中心，接受维修业务和处理客户投诉，目的在于与国际接轨。
Many large companies in Shanghai have geared themselves to the international conventions and set up aftersales services accepting repairs and dealing with customers, complaints.
80%的顾客投诉是由20%的产品售后服务引起的。
80% of customer complaints arise from 20% of your products or services.
我写这封信要投诉你们的售后服务。
I'm writing this letter in purpose of complaining about your after-sale service.
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