Can´t transfer license to another PC but I followed the instructions! Please help!!!

So yeah I bought Toon Boom Harmony Essentials last year and now I changed my PC to a laptop. I followed the instructions and returned the license from the PC an uninstalled Harmony. When it came to activating my license IT SAID THAT THE ACTIVATION WAS SUCCESFULL BUT IT WASN´T! I tried it multiple times. Always with the same result. I was told it was succesfully activated but when I opened Harmony it said it didn´t found the license. I really need help! Does someone know what to do?