Your receipt / invoice for your subscription will be emailed to you automatically every time you're billed. All your past receipts are also available in the billing section of your account page.
Please note that your receipt won’t be available until you are billed. If you are in a trial period of a paid plan then your invoice will be available at the end of your trial period, when the first payment is made.
To print or save any of your invoices, press CTRL+P (Windows) or CMD+P (Mac) to open the printing menu when you have your invoice on-screen.