@BethS I don’t doubt that all your COps are working hard and Monzo is really trying to get more people on-board so they can bring Support times down but like your answer above similar sort of responses have been given by Monzo staff whenever someone complained about support response times. Not a good impression at all if you want still not fully convinced people like me to start using Monzo as the main account again.
My wife had this Card replacement message on her app and she actually stopped using the card because she thought her card has been compromised and Monzo is in process of sending a new card.
Lack of response within a reasonable timeframe is more important than friendly customer service sometime.