If you are on a paid Crowdcast plan, you can view, email and download your billing receipts by clicking on “view billing history” from your settings. You'll first want to get to your settings within your dashboard:

Scroll down past the list of plans, until you find the section labeled as Payment Method*.* From there, you'll click on "View Billing History":

When you click on this, a new page will appear with information about your plan and, towards the bottom of the page, your invoice history.

To view any invoice, click on the date of within the "invoice history" section. You can download the invoice or download the receipt from here.