请问一下，那个monthly saving pass的说明上说：

To get your January 2012 $10.00 Monthly Savings Pass, simply make your purchase by the last day of January and email your sales confirmation receipt from xx to [email protected] within 30 days of making your purchase (online purchases do not require coupon to be mailed.) We cannot open attachments in email, so please do not include attachments when you email your sales confirmation receipt."

如果不能用附件的话，怎么发receipt啊？