My order was canceled from customer service and the money was refunded to the buyer after the order was completed. What should I do?

[daffaaminuddin]

Long story short, I got an order from someone and I offered them a gig with 1 revision 19th Dec gig booked. On Dec 20th, I finished it and delivered it to the buyer. on the same day he asked for a revision with. I agreed and asked for an extension of time. on December 21st I finished the revision and submitted it. no response until the order expired. on Dec 29th, he asked for a revision. At that time I couldn't respond because on  holiday  plus the the order only had to be revised once. On January 2, the order was canceled via customer service. After discussing with him, he canceled because I didn't answer his last message for revision 2 (even though the order for revision was only 1).
what do I have to do?