Worn twice? Sounds like a factory defect/ free pair for compensation...
Just yesterday my 9 year old korkers brand wading boots fell apart on the bottom. I'm sure the shoe goo or stuff fichy reccomended would work but instead of glueing the sole back in I decided to just retire the boots from studded wading boots and I strapped my 25 year old original korkers sandals over them to keep them intact. I gotta say they sure don't make em like they used to. And cpswing, I highly suggest spikes rather than felt alone. Clints suggestion with fichy's product suggestion should do you well if factory reimbursement is not in the cards. Also, if you fish winter try to stay away from felt as it ices and clumps up... tight lines