I contact Fiverr, and they told me the client requested for order cancellation. I completed that order 3 months ago. Fiverr needs to improve in cancellation policy. who is responsible before 3 months completed order. like this user can put an order cancellation after completing his purpose. This buyer gives me 2 more small orders. This buyer gave me 2 more small orders.
This means, the buyer does not need to pay for work.