I have a 3 device license for what is now called Avast Premium Security. Given that you now sell a multi-device license for this same product (not sure when this started, but I know it wasn't available when you first introduced the paid version of the mac product as I asked about this back then).
It was obviously only brought for 3 windows machines, because at the time that was the only thing you supported. Do I need to do anything else to make this include my mac or do I just cancel my existing subscription and start again?