G is the transaction safe or not?

Very safe. I just bought a number of 3600 on the G trading network. The official customer service contacted you separately and asked you to submit a set of information to modify the original data of the seller's account. You can log in to the game only after you bind the fish (formerly G Butler). This is not safe unless your computer was hit by a Trojan horse, when you bought the number and stole the original data you submitted.