If you purchase a trip from GCT, you will be offered and encouraged to purchase what they call their Travel Protection Plan; they do not call it Trip Mate insurance. You can only purchase this plan from GCT and cannot do so after you have made your final trip payment. The plan has two parts.
Part A benefits are called Travel Arrangement Protection Benefits and include Trip Cancellation (including the Cancel For Any Reason Waiver Benefit), Trip Interruption, Missed Connection and Travel Delay. They are provided by Grand Circle (for New York Residents, all of these benefits except the Cancel For Any Reason Waiver Benefit are insurance benefits underwritten by United States Fire Insurance Company).
Part B benefits are called Travel Insurance Benefits and include Accidental Death and Dismemberment, Medical Expense/Emergency Assistance, Baggage and Personal Effects, and Baggage Delay.They are underwritten by United States Fire Insurance Company.
The Travel Protection Plan is administered by Trip Mate, Inc. (In California, Trip Mate Insurance Agency, Inc.). All claims are submitted to and processed by Trip Mate. Approved Part A benefits are paid by Grand Circle and approved Part B benefits are paid by the United States Fire Insurance Company.
The cost of the plan based solely on the cost of the trip. When I compared plans available on insuremytrip.com, age appears to be a major factor in the cost. I found that the cost of a plan for a 77 year old person is about twice (and sometimes more) as the cost for a 57 year old person. If you purchase the GCT plan and they cancels a trip, they will refund the amount you paid. If they cancel an extension, they will refund a prorated amout. Perhaps, someone knows if travel insurance companies will do this.
Please do not consider any of the above as an endorsement for what GCT offers. It is just my attempt to provide to provide useful information to anyone who is considering the purchase of the plan.