ive unlocked 2 shouts and they working great ,after that i got to more words and killed 7 more dragon but the shouts are not unlocking and when i click on the shouts it just says i need dragon soul's,can any1 help

if your on xbox you need to press X to use the souls. if your on another console it says on the bottom what button to press to spend your dragon souls.

If its a pc u need tou push R at a shout tou unlock it