Fiverr Community Forum

My first fiverr experience but I am afraid

‍a buyer hired me. I do his work according to his needs. He completed my order but he didn’t give me any revision. Now he says “your work is too bad. Give me my money back” But I tell him “I’ll do it the way you need me to”. Even then he wants a refund and threatens to give me a bad review. What can I do in that case? Can any of you advise me?

thanks all for advices