mazengh -
Please call EFI at 888.334.8650 and reference number WD-420247365. This will patch you through to support. Please have this information available before calling in:
1.Your dongle ID
2. FULL version of XF you are currently running (i.e-3.1, 3.1.4, 3.1.5, 3.1.6, 3.1.7, 3.1.8...