I only have bank accounts with Discover, not credit cards, by design. They're very, very slow in posting transactions - which is a problem when I may forget about certain transactions & am used to being able to check online.
I signed up for 2 factor authentication, and there's an option to place a checkmark in a box telling the website to recognize my laptop. Customer service has been worthless, telling me I should check the box (it's been checked for over a year) as well as referring me to their FAQs which are worthless. I actually believe they don't bother to review prior messages in the thread, based on ludicrous and angering answers.