Here is something I have learned about boots in general. Most makers wheather it be Justin, Tony LLamma, Ariat or even Danner or Lacrosse have different levels of quality. The good old American made boots may not be. The lower end are usually made in China or mexico or singapore and run around 100 bucks to 150. The higher end boots are usually made in America and the price tag shows it. The last pair of Justin, Tony Lama and now my Ariats are all stamped with made in China on the inside. I have a pair of Danner hunting boots that cost me 239 bucks and the are made in America and have lasted me 4 years. The danners I had before them I got for around 150 bucks and they were made in China. Lasted one hunting season and started to leak. Sometimes you get what you pay for.
All that being said the store should have done something to make it right. Or maybe contact justin. At the very least you know where not to buy boots again.