Pocket zipper frayed, getting hung up.

Hi,

I have a pocket zipper that started to fray, & was getting hung up. I burned off the fray with a lighter, it still didn’t fix it. I burned it a little more, it worked, but still has a little friction on the spot. It also created a small gap on the zipper fabric between the zipper and jacket fabric. I am thinking if I keep using the pocket, the gap will get bigger.

It is a brand new Nano Puff that a vendor gave me a month ago. I have worn it a handful of times, & surprised the zipper failed so quick.

Is it something that can be fixed under warranty?