关于TUNE用信用卡支付的问题

1、用信用卡支付TUNE费用后，信用卡持卡人是否必须入住？代他人订房可以吗？

2、我英文不好，下面这段话是说神马意思？

In our effort to enhance the security of credit cards used for payment, credit card Bookings made within 5 days prior to check in will require presentation of the said card. Failure to do so may delay your check in process. We thank you for your kind cooperation and understanding.

谢谢