Location can be changed when stocks are available. For special plan, location can't be changed after the promotion ends (no stock).
Main IP change is only available if it is caused by the network issue on our site. No change under other situation such as IP being blocked by company or national firewalls.
IP 地址更换只在 StarryDNS 自己网络问题时可以更换. 若因公司或 GFW 屏蔽 IP 不可更换