Does wuxi new district Opera Jiangnan ktv really have to pay the waiter to 500 yuan?

I went to Jiangnan for two days and paid 400 yuan. On the day I went, I left two waiters. I heard that I left five the day before, two the next day and left on the third day. I asked my assistant for a refund. The assistant said that I haven't returned my contract for three months. I asked the personnel manager, who told me to go directly to the general manager. The general manager is a rogue. I died the first time I sent it.