I paid him 900 yuan on August 20th. They are all in always online before payment. After the payment, I can't contact anyone. After informing him that I had paid the money a few days ago, he said that it had been delivered. He asked him for the bill number. He said it was finance or something. Anyway, I didn't arrive. Today is August 25th, and I still haven't contacted them.

Their account number is Xionghonggen 622202 100 108689.

China Agricultural Bank Xiong Honggen 6228480031347347911

Xiong Honggen 6227001215390281

I was thinking, is there nothing I can do for them?