Is Shenzhen Tiantai Airlines reliable?

Very unreliable! ! I booked a flight from Shenzhen to Hangzhou on the 23rd at Tiantai a month ago. Traveling to Macau with LG was supposed to save money, so our ticket from Shenzhen was taxed. More than 600 direct flights to Macao and more than 2,000 direct flights. Until the evening of the 22nd, the SMS informed us that the flight was cancelled, and it was definitely not possible to change it to the 24th. Then we started dialing the number left in their text messages. At this time, we called three times in Macao at different times and said that there were 10 people waiting in front. Please let's make an international call. Later, I went online to find another number of Tiantai Airlines and answered the phone, saying that the international air ticket department was not responsible for domestic air tickets, and then called another number to say that it was responsible for Taobao air tickets, and then made another call. I almost broke out, but I can only call for music again. There are ten people ahead. Ok, I'll wait! After waiting for more than 30 minutes, I finally told me that I was next, and suddenly jumped out and asked me to choose 1, book a plane ticket 2, and return the plane ticket. 3,。 . . I chose 2, and then something irritating came out. He also said that there were five people waiting in front of me. What a broken system. I've been making international calls for more than 50 minutes, and I still don't know the result. Really angry! First, why not inform customers in advance and make plans early? Second, if there is such a problem, you have no sincerity to deal with it and directly let the passengers change their flights for the next day. I won't choose this agent again anyway. I feel that there is a problem and I am not responsible enough!