Complaint Review: Magic jack

I have been a magic jack customer since about 2005. In 2007 I bought Magic jack plus which recently began to malfuction. I bought an open box unit from a secondary retailer and discovered it cant be re-registered under my current account which has tmie left until 7/24. I asked if I bought new unit could my time be transfered to that unit Tech/billing advised me that could not be done nor could a refund of remaining time. So in essence I feel I am being ripped off for remainng time left as no other clear cut way to use my remaining time can be offered no resolution.