Click on the support icon on the top left of screen. It will probably be under shipping problem or sent back wrong game. Just put in the description that you mistakenly sent petz sports back in the chicken riot game return envelope. I'm sure they saw the mistake when they recieved the wrong game in the envelope. They should be able to mail your petz sports game back to you, along with a new mail sleeve package for you to return chicken riot. Don't worry, they will take care of it.