Mount lv question?:)

newmoonchild

Hi I am sorry if this has been asked and answered.
I read mounts get up only to lv 11?
Is this true?

And also, if my mount lv req is 40, as it levs, does it's lv req go up-or if I get a mount say lv 11 can I still ride it at lv 40?
Thank you in advance!!!