Bests & Worsts Reviews from Amazon

I bought this last October, but really started using it this past spring. It was fine for a couple months. Now it just leaks glue like crazy! I went through my last bag of glue sticks in days! As you can see by the "mountain" of glue in the pic, as it sits in the holder, the glue just keeps coming. I have emailed Surebonder TWICE now and they have yet to respond. I had better luck with my $5.00 Hobby Lobby glue gun. VERY disappointed!