First if you are unsure about what billing plan your Hightail account currently has you can find all of the information online by logging into your Hightail.com account. Once you login please click on the My Account link at the top. This will show you your account type and billing plan right at the top. You also have a link from here to Upgrade your Account.
Getting a receipt is really easy and can be done right through your Hightail account. First login to www.hightail.com and click on the My Account link at the very top. Next click on the Billing Information link. This will show you the current billing plan you are on, when you are paid in full through as well as the last invoice date.
To download your receipts please click on the Purchase Receipts link on the left side and then click on the invoice date to bring up that specific invoice.
From the invoice detail page you can click the Click to print receipt link to print out a printer friendly version of the invoice.