I was reading only a few days ago about a relatively new app that's likely to help the dishonest. I've been racking my brains to remember where I read it but to no avail. The basics of it are that enables a user to mask the number from which they are sending the message - not withholding it but entering a number other than the one they are using. It sounds dangerous as they can, for example use a legitimate bank number or any other number they choose. It seems it's legal (so far) in most countries although the US, UK and a few others have introduced some regulations that seems to say, you can use the app but mustn't to X,Y or Z or notify the recipient that the number if not your own. How they find out who's breaking the rules (I don't think they're law, yet) and stop them doing it heaven knows.
I understand that in your case the messages you're receiving are actually from your daughter but seemingly from different numbers but according to what I read this app would enable me to send messages to you and others substituting my number with, say, your daughter's if I happened to know it. Sounds like a scammer's delight if they can use a bank number that the recipient might recognise or have in their contact list.