We asked for the change to take effect immediately, and 777 told us it would show up in My Vodafone within a few minutes.
By Saturday morning, she was still showing unlimited minutes and her old data balance.
I called 777 back, and they said they could see she was on the new plan now, and to just give it a bit more time.
Here we are on Tuesday morning, and in the My Vodafone iOS app and website, we still can't see her real balance.
Can anyone advise whether this is usual?