Hi Ullo
I purchased the StyleMagic YA version a few years back. I recently upgraded to the Genos version. The "dongle" refers to the original USB stick you used to purchase and install the StyleMagic program.
For the program to work, you must have this original USB stick (dongle) plugged into your PC. Not sure why your emails are being ignored, but if you are an original purchaser, it is noted that they can reinstall the program onto another USB stick in the event that your original one was damaged or lost.
Hope everything works out in the end.
Marcus