Mango Airline - ticket refund still not paid after 2 months

After several attempts of writing to Mango airlines, five emails sent already to request for full refund, i still find myself waiting for their response/communication regarding my request. I first wrote to t airline in April whilst in level 5 on national lockdown and knowing that i will no longer travel considering the circumstances of COVID-19. I have submitted everything they have requested for on the mail but have not heard anything to date. I am not even sure if there's anyone working at the moment as it has been 2 full months without communication. I were travelling as a family of 4ppl and need my money to use it for other things. Someone please talk to the airline management? Disappointed client.