An email was already sent in the last 2 hours

I get this message when I try to add security questions to my MC account:
Error! An e-mail was already sent within the last two hours, try again in a while.

The bug is, the message doesn't go away after 2 hours. Doesn't go away after a day either.

Might wanna fix that, as it is compromising the security of Minecraft accounts if people can't secure them.