You've most likely received a receipt to your registered email address after purchasing our subscription (be sure to check your spam folder if you don't see the email in your inbox).
If you purchased via the website:
We can also provide you with an invoice for your web purchase. You can download your invoice under Your invoices in the Accounts Settings on our website.
If you purchased on the Google Play or Apple app/iTunes store:
Unfortunately, we're not able generate invoices for in-app purchases - these can only be provided by Google Play or Apple. You can find instructions on how to get your in-app purchase receipts by navigating to the Google Play and Apple support pages.