Licence problem

when I start the eM client it sayys that I have invlid licence. I used your page to retrieve my activation key and I got back my activion key with expiring date 1.1.2016. When I put the activation key into the licence it says that is invalid. Can you help with this problem asap? The  email adress is

Hello, I’ve checked our licensing, but unfortunately it seems like your license has been blocked due to suspected commercial use activity, please obtain a valid PRO license at in order to use the application further.