只需Email就可取消訂房嗎？ - 歐洲旅遊

我是在這個網站上訂房的 http://www.hostelsalessandro.com/
可是現在臨時要取消行程
看了一下取消的規定 是只要Email取消就可以嗎??
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CANCELLATION POLICY:

If your plans change, you can cancel the booking any time up to 24
hours before arrival by sending an email directly to the Alessandro Downtown
Hostel at [email protected].

Please include all your booking details in the cancellation email, and
keep the email which you have sent to the hostel as proof of your
cancellation.
If you do not cancel, the hostel has the right to charge your credit
card for the first night of the booking.

If you wish to change your reservation, or any details of it, please
contact the hostel directly: [email protected]
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我已經mail過去了 可是這樣就算取消成功了嗎？
很不踏實的感覺 很怕到時後信用卡帳單來被扣款>_<

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