Thank you for letting me know! I've contacted those participants, and will watch out for those two matches to make sure their writer did not match on the DNWed relationships. In general for this exchange, if DNWs contradict the signup, the signup takes precedence.

For the tags and prompts for unnominated relationships, please feel free to ignore them - you will only match on what you offered, and prompts are optional. I've also fixed the signup form so it will no longer accept relationships which were not nominated.