I asked the studio to practice the account number of 5 173 yesterday? Why can't I find the bill today? It's not in the transaction records

Generally, when you cooperate with the studio, you must find someone in the same city, and then make it clear to your face what you need to trade. It is best to sign an agreement, signed by both parties. It doesn't matter whether it's expensive or not. Safety is the most important thing. If you find someone from another city, and then you pay first, congratulations, you have been cheated.