Accepting buyer's cancellation of order by mistake

[ace_seo1]

I have a buyer who wanted my service on SEO, and after I rendered the service perfectly like I always did, he wanted to cancel the order with no genuine excuse..

   But the mistake I did was I accepted the cancellation by mistake, is there something I can do, or will he just walk away like that 😔

[melanielm]

The order's cancelled. You can't uncancel it. 

[sreeti7077rani]

You already cancelled the order so nothing is possible now.

[barsha0011]

It was not OK to cancel the order.