I tried installing this app again when I upgraded to the new MacBook.

My serial number was rejected so I used their contact form on their website to receive a new activation key as my app had been installed previously. The activation key was rejected when trying to activate. I requested another and the same key was sent. I left it a few days and requested yet another activation key. This time a new key was sent but was still rejected when trying to activate.

I've since sent them an email via their web form but am still waiting for some sort of response. In the meantime I cannot use this application that I duly paid good money for.

Very poor customer service in my opinion. I'll give it a few more days to see if I get a response. If I don't I'll resort to downloading a cracked version and refrain from buying any of their apps in the future. I'd rather not have to do this but if this is the only way that I'll be able to use an app that I paid for then so be it.