Unacceptable in not refunding monies!

I bought a return ticket to to Cape Town for the Two Oceans Marathon, this would have been my first Two Oceans half marathon that I would have done. Now due to the Coronavirus it has been cancelled, which I do understand. Now FlySafair does not want to refund my ticket, but is offering to change flight or a voucher that have to be used in 6 months! I need the refund of my funds which is R4158,00. They then still want to charge you a R300 - R600 fee for changing and cancelling! This is unfair. Yes I do understand there is a policy, but really I did not ask for this to happen and this is a pandemic that was called by the Goverment and not ME. As a rule I do not fly, the lats I was on a airplane was in January 2017 for an emergency. This is really unacceptable and all I ask is for a refund of my money!