You can win an extra reward for two identical cards.
https://www.clubhombre.com/mybb/showthread.php?tid=7928
https://www.ww2.site/forum/viewtopic.php?t=75323
https://www.seono1.co.th/forum/index.php/topic,1016735.new.html#new
http://xn--b1afkfa5bn1b.xn--p1ai/forum/index.php?PAGE_NAME=message&FID=2&TID=36422&MID=41508&sessid=edcee23033d7185889832f86b74c7047&TOPIC_SUBSCRIBE=Y&FORUM_SUBSCRIBE=Y&result=new
http://oldsite.giessen46ers.de/fantalk/viewtopic.php?f=9&t=173874
http://biopharmamash.com/viewtopic.php?t=1242255
http://forum.bandingklub.cz/viewtopic.php?f=21&t=1421178
http://forums.shlock.co.uk/viewtopic.php?f=2&t=440279
https://ufr-2020.front5.picapo.net/forums/viewtopic.php?pid=277989
https://neoternia.net/viewtopic.php?t=185137