I want my refund of R2020

On the 28th of July 2021, I bought the seat ticket to Abuja Nigeria with Emirates, ticket no *** ref KDR572, cause of covid I couldn't go cause Emirates didn't move from South Africa to Nigeria, now in January 2022 I app**** for refund from them and twice I got a. Email saying I will not get my refund and I don't understand why cause I didn't use it.