What will happen if I connect to an internet already used by another user on a Fiverr

[talatabbas03]

Hello Everyone, I have a Question. My Aunt's son is asking me to create a new account for him on Fiverr. His field is different. He is a CA, And I am a Designer. What will happen if I create a new account on Fiverr for him and we use the same Internet?

One more question: I have to connect to Wi-Fi because I am a traveller. What will happen if I connect to an internet already used by another user on a Fiverr account with the same skills?