我的邮箱怎么了😢

用了兑换码邮箱什么也没收到是怎么回事呀，今天刚下载的……求解答😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢