在花唄中“我的”頁面找到“還款日設置”進行預約即可。具體操作如下：

一、打開花唄，點擊屏幕最右下角的“我的”。

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二、在“我的”界面中，點擊”還款日設置“。

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三、選擇還款日期，總共有2種方式，選擇好后，點擊”立即預約“。

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四、再次確認還款日期，確認后點擊”確定“。

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五、輸入支付密碼或驗證指紋。

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六、驗證成功后，系統顯示”還款日調整預約成功“，點擊“完成”。

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1、二種還款方式：一種是“5號出賬、15日還款”，一種是“10號出賬、20號還款“。

2、生效日期時間要隔月才開始，比如2019年8月申請，要到2019年10月才實行。