Hello, What device are you referring to here today- a Kindle?
Which model Nook do you have?
Also where did you try updating your CC info- on the Nook itself?
Okay I didn't ask how often you bought books, I asked the model and where you updated. So you updated on the Nook. What exactly do you see on your screen and WHICH Nook do you have?
Welcome, I am Cory.
To find the model number, please go to Settings, then tap Device Info, then tap About your nook.
Once you have that info, we will continue.
I don't mind helping you and I am sorry you had that issue with the previous expert.