> For the complete documentation index, see [llms.txt](https://hoyapay.gitbook.io/chang-jian-wen-ti-fan-ti-zhong-wen/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://hoyapay.gitbook.io/chang-jian-wen-ti-fan-ti-zhong-wen/yong-hu-shi-yong-chang-jian-wen-ti/bang-ding-shou-ji-hao-ma-shi-ti-shi-shou-ji-hao-ma-yi-cun-zai-zen-mo-ban.md).

# 綁定手機號碼時提示「手機號碼已存在」怎麼辦？

每個手機號碼只能綁定一個 HoyaPay 帳戶，若該號碼已與其他帳戶綁定，將無法重複使用。
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建議您檢查是否已使用該號碼註冊帳號，或嘗試更換其他可用手機號碼進行綁定。