TA booked me nonrefundable fare

I didn't know that she booked me nonrefundable fare. Even though she knew this was a 2nd choice and only choice to go on the route I wanted. Asian cruises where booked 9-12+ months out. She knew I wanted the other cruise line because it has a better plan packages. The original cruise line had cabins opened up so I booked. I asked her to cancel and she tells me that it wasn't booked as refundable deposit. I apparently not paid attention to all of the booking information because I would never book nonrefundable deposit. Apparently my travel insurance Generali doesn't have or she didn't elect cancel for any reason coverage.