She missed a higher calling! A Chicago bank worker hung up on Pope Leo XIV when he tried to change his on-file address to the Vatican because she thought it was a prank, according to the pope’s brother John Prevost. The pontiff had a less-than-heavenly customer service experience when he called to update his personal info two months into his papacy last summer, Prevost told CNN’s OutFront Wednesday. A bank teller hung up on Pope Leo XIV, thinking the call was a prank. AFP via Getty Images “It went on so long, I said, ‘You know, ma’am, it might be helpful for you to know you’re talking to my brother who’s in Rome right now,’” said Prevost, who was apparently on the phone with the 70-year-old head of the Catholic Church. “‘You’re speaking with the Pope,” Prevost recalled saying. “She said, ‘Oh really?’ And hung up.” Prevost didn’t reveal which bank it was.…