Mango, policy not to refund, no matter the circumstances

We are pensioners and saved for a holiday from 3 March to 16 March, choosing Mango as the the carrier. Ref TFSFBQ Booking ref ZA***2 Regrettably my wife took ill and needed urgent Chemotherapy. We had to cancel. Despite a letter from the haematologist confirming the risk to my wifes life, mango was not prepared to refund. They slapped me with a heavy cancellation fee and sent me a token for about half the ticket, which I will probably not be able to use, under the circumstances. I have noted from other Hellopeter complaints, that they take a similar stance for tickets cancelled due to the Corona lock down. When I spoke to a consultant, he explained that this is how the system works. He is wrong, it is the way some faceless board members take decisions showing that they have the compassion of a fish. Treat your customers in such a manner and see how long you are still going to be supported.