Just like the patch notes states - all of them
“All character ability recharge rates have been rebalanced, making some less ‘spamable’ during intense combat.”
A good way to know if requests like this are legit is to move the conversation to email (as Richard asked for) and make sure the email address is legit. We use @avalanchestudios.se or @systemicreaction.com emails.
And you have nothing to be sorry about! - It's great that you're careful! There are tons of scams going around, and even more than usual as a result of the pandemic.