Don’t buy Rugby boots at Adidas

I bought ***ari soft ground boots for my Son who is in high school, he never wore the boot last year only wore it this year 2 times. Now a pin under the sole has come off the plastic thing held by the pin is loose, making it a tripping hazard I sent pictures to show them the boot is fairly new they say the warranty of 6 months is over. When the issue is clearly poor workmanship.