This call may be recorded for training purposes...
...the message says when you phone up to complain. You think ah good, permission to record the call, thanks. With the fancy smartphone with gigabytes of storage that ought to be easy, heck, it should be on by default. It's not on by default and it's not easy. This means that others who you maybe in legal dispute with 'may' have recordings they can use if it suits them but you don't.
You also know that some AI is listening to what you're saying and may make recordings if you say trigger words or perhaps everything it simply recorded by default, why not, I'm sure the storage exists. Everything I've ever said on the phone would probably fit on a flash drive.