注册没成功但是再注册就邮箱就说被占用了怎么办?

在公众平台登录注册邮箱的账号，继续完成注册。

以下为之前类似问题帖子的链接，可以参考以下帖子：https://developers.weixin.qq.com/community/develop/doc/00084623e586107a1fc77ac6756800?highLine=%25E5%25BE%2585%25E5%25AE%258C%25E6%2588%2590%25E6%25B3%25A8%25E5%2586%258C

https://developers.weixin.qq.com/community/develop/doc/0008481524804806a4179639e51000?highLine=%25E5%25BE%2585%25E5%25AE%258C%25E6%2588%2590%25E6%25B3%25A8%25E5%2586%258C

https://developers.weixin.qq.com/community/develop/doc/000e4e675b0408f71f173669754c00?highLine=%25E5%25BE%2585%25E5%25AE%258C%25E6%2588%2590%25E6%25B3%25A8%25E5%2586%258C

https://developers.weixin.qq.com/community/develop/doc/000e0cc83082d02f7bc7fe09a51800?highLine=%25E6%25B3%25A8%25E5%2586%258C%25E5%25A4%25B1%25E8%25B4%25A5

“60% 的烦恼能通过文档解决，剩下百分 40% 中 有 80% 能通过社区搜索解决，还有 8% 的问题才需要提问”

也许成功了，用那个邮箱找回密码试试。