Level up transferable?

This is a kind of dumb question, but I hadn't played for a long while, and was curious if the lvl 90 we bought with coins was in some way transferable?
Like we have another character 90'd and delete the old one or something?

(I realize the likelihood of it being an option is slim but figured it doesn't hurt to ask)

I'm fairly certain that it says it's non-refundable so that's a no.
Maybe check trade, try selling that char and buying another, that's your best bet.