Bug

On Wendsday I bought 90 lvl on my warrior orc. But i cant buy appertince riding skill becouse its gone and i need it.. i need 40 lvl riding skill but first i need to buy 20 lvl riding skill but its gone. I even travelled to thunderbuff.. on my foot.. from orrogrimmar..And i have nothing.. Please help me !

https://www.warmane.com/account/support

Go here, make a support ticket, and explain it there, or simply make a ingame ticket about it, only a Gamemaster can help you with that, if infact the riding skills arent there to be learned, your english is kinda bad and hopefully i understood your problem well, if not, let me know.