1. Complain directly to the customer service, describe the complaint content in detail to the customer service staff, and seek solutions.

2. Complain to the local regulatory authorities, provide valid materials to prove, and put forward the demand for solutions. Xi 'an, formerly known as Chang 'an and Haojing, is a prefecture-level city under the jurisdiction of Shaanxi Province. It is the capital, sub-provincial city, mega-city and national central city of Shaanxi Province, the core city of xi metropolitan area and Guanzhong plain urban agglomeration, an important central city in western China approved by the State Council, and an important national scientific research, education and industrial base.