I didn't receive the activity reward

我完成了之前的活动,但是一直没有收到阿兹特克探险家的皮肤奖励,从截图可以看出我解锁了最终的皮肤奖励,但是第二个没有解锁,我以为是版本问题,但是几个月过去了还是没有解锁
I finished the previous activity, but I haven’t received the skin reward from Aztec explorer. It can be seen from the screenshot that I unlocked the final skin reward, but the second one didn’t unlock. I thought it was a version problem, but a few months later, I still didn’t unlock it