NO RESPONSE

My first email was sent on 07.06.2021 requesting my voucher details as my laptop was ******. After 8 emails I eventually got 2 vouchers sent to me on 14.08.2021 (more than 2 months later). The vouchers have no voucher numbers, only voucher pins. I have sent numerous emails to *** requesting assistance as I was told in a previous email that the vouchers expire on 30.09.2021. Also when I asked if the expiry date could be extended I was told "NO" even though it took them more than 2 months to actually send the vouchers to me. If you request a refund there is a 45% cancellation fee, why do I have to suffer the loss if covid cancelled the flight for me? I have been trying to book tickets for 3 days now and have received no assistance, thus I cannot use the vouchers.