Board Thread:Game Discussion/@comment-84.242.110.52-20180112153200/@comment-68.1.96.134-20180112184549

Try resetting your ad id (google's your friend on how), and be sure to watch all the R$ ads before getting GC ads again. It takes about 190 ads total to collect all 20 GC. Aside from that, their ad delivery system has been buggy for a lot of players lately.