Hey bikeforumers. Recently tried to remove my seat post, but upon turning the allen key in the bolt, i found out that it's all rounded, and i can't get any friction to turn it. So i tried Supergluing the allen key in there, that didn't work. Pliers won't fit because the nut is sort of inbuilt into the frame. Also tried hammering the Allen key in there, no avail.

Anyone know what to do? Ehhhhhhhhhhhh?

Thanks.