> For the complete documentation index, see [llms.txt](https://hdnb.gtelpost.vn/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://hdnb.gtelpost.vn/g-billing/phan-he-ca-nhan/quan-ly-tai-khoan.md).

# Quản lý tài khoản