How does one get bank statement from Venmo debit card

I’m asking for a friend. He just came to the US and opened a Venmo debit card account. Now he needs a bank statement to proof that he’s the account owner, however, Venmo’s card is associated with another bank and none of them could give him a bank statement. How can he get the statement or any type of proof to show that he’s the account holder? Thank you 🙏