I booked a flight on Delta in January for a trip to Kenya and also purchased a "cancel for any reason" trip insurance policy. Last week I decided not to take the trip and called to cancel my flight. I was told I would have a credit that was good for a year. I then realized that my trip insurance will reimburse me for the flight cost if I can provide documentation that I am "refusing" the flight credit. I called Delta back and stated my desire to "refuse" the credit and requested documentation of that refusal, but was told they will not provide any kind of written verification and stated they only provide such verification if the airline itself has cancelled the flight.
Any ideas on how to obtain the document I need from Delta--or another way to provide "proof" to the insurance company--or would be greatly appreciated.