I bought Riffstation for iMac 10 and some weeks ago a new iMac 10.12. I cannot find my serial number for my Riffstation. Can you send it, please or do I have to buy it a second time?
There is no need to buy the application once more, since the developers offer the possibility to retrieve it through their official website. You just have to visit the website, input the email that was previously used to buy the software. For PayPal, use the same email you input in the PayPal's login form.