I had a text from my bank due to some fraudulent transaction. It asked me to reply if the transaction was legit so I called them up. They couldn't understand wh

I had a text from my bank due to some fraudulent transaction. It asked me to reply if the transaction was legit so I called them up. They couldn't understand why I didn't want to start a conversation about my account with a number I didn't recognise. They said "if the text says it's from us it definitely is". I was not overly impressed by this.