Bet she had an extension cord from the wall outlet to the charger. The extension cord attached to the charger is what fell into the tub. If I’m correct, the phone charger has nothing to do with the story except to attract people to the article.
Most likely. The low charge voltage is isolated from the 240V supply. The cord had to have fallen in the tub. Too bad she didn’t appreciate the dangers of electricity and bathtubs.