Or you can contact your bank to initiate the chargeback procedure. It will take some time but might help at the end of the day.
My story short:
In February bought flights Munich-Russia-Munich on Aeroflot website.
In March Russia closed the borders and Aeroflot posted news that people can receive money back or get certificates / vouchers.
Then there was a long waiting time. I gave up and wrote to my bank.
Filled out the form, got the preliminary refund. After a while Aeroflot disputed it, I got charged again and wrote a claim on their claim
At the end of September got the message form the bank that I got final approval and money would be back soon. In a couple of days got it.
These f#ckers got huge amount of money from the Russian government and they are still trying to rob passengers. Never will use Aerofraud anymore.