Hello, I bought the 5-day pass to travel with my family from Geneva to Stockholm in mid July. The outward journeys are booked but it's impossible to find return trains, everything is full, I spent hours looking! We can't afford to take trains that will take us more than 30 hours to get home!  I don’t know what to do...

I've taken out interrail cancellation insurance and I'd like to know if I use 3 days of travel out of the 5 I bought, can I ask for a refund for the 2 days not used?