Same happened to me with a quiver tip when my lad reeled it in too much with the hook in the keeper and it snapped. All I did was apply some heat to the top ring and removed it with a pair of pliers, sanded down the good bit of the quiver, pushed the top ring back on and applied the heat again and it was fixed.
Have landed many a fish on it since and haven't noticed a drop in performance when playing a fish, also it taught my lad a lesson about how to treat the rod and I've just about forgiven him