Closed bank account still on internet banking? halifax?

I closed a savings account a week ago, and its still on my internet banking saying (closed). when ive closed accounts previously they disappear after 3 days tops. what does this mean? thanksjojo, shut up fool.
Answer
When halifax changed my credit card from visa to mastercard, the old visa account still remains on my list, i think this is just something that halifax does, after all if the account is closed nothing will happen to it.