Civid-19 Security insurance - Travelstart ****

I bought 3 tickets in February and made sure I purchase the Covid-19 Security insurance. The event we were suppose to attend were in fact cancel due to the Covid-19 Government restrictions. I cancelled the flights and requested a refund. After numerous emails where they have the option for refund, Travelstart's response is that the airline does not give refunds. If I buy insurance then it would be fair to assume that the company I am buying from will in return go to an underwriter to also obtain such insurance to enable them to make good on the offer for such insurance. It seems like Travelstart saw an opportunity to make some extra cash out of the Coronavirus and can now not repay that money.