Is it true that HNA handles the arrears of mobile phone cards and customer service calls?

It's true. HNA Telecom's calling card is legal. HNA Communication was established in March, 20 15, and it is the first virtual operation enterprise to obtain the official commercial license of the mobile resale business of the Ministry of Industry and Information Technology. So it's true that HNA called customer service to handle the arrears of mobile phone cards. HNA generally refers to HNA Group Co., Ltd., which is a multinational enterprise group with air transportation as its core.