I applied through email for cost refund about my c...

I applied through email for cost refund about my cancelled flights cause of COVID issue on 16/4/20 and I saw the refund money to my bank account on 21/7/20. Within this period of time I sent a lot of emails, while I am keeping proofs which indicate that airline company sent them back my refund earlier. I personally let them know that they should have received my refund after challenging them to check again and again their incoming transactions to their bank account after the 13th week of waiting; Hearing all the time the same excuse........At the end, when they saw that I was not giving up, they gave me back less money charging me fees!!!!!!!!!!! for no reason!!! Fully unprofessional behavior!!!! I will never use this agency again!!!