我前两天在网上订了酒店，但是它回复
Thank you for your booking with AtSiam.com. We are pleased to inform you that the room is available on your period. However, there is a slight problem. For your request for The room close to the beach, this resort is on the hill don't hae room close to the beach byt have only sea view room. And another request for Twin Beds, the room is available only King Bed.
If you agree with this condition, we will confirm the room and send you a voucher by email. However, if you do not agree, we will cancel your booking without charges. We will also help you find other hotels that match your requests.
Your prompt attention would highly appreciate as we have limited time to hold your booking.
我决定不在那里住啦，不过信用卡已经扣钱了，但是根据他的回复，退房应该是不收任何费用，那我如何用英文回复并咨询他何时能退还房款？还有就是怎样问他退房会不会收费？谢谢
信里已经明白写了"cancel booking without charges",你就直接回复cancel booking不就行了？至于已扣的钱什么时候回来应该取决于信用卡结算的相关规定吧。