Once the buyer has accepted the delivery offer and paid for it, he cannot cancel the order. However, if the buyer no longer needs the item, he can contact you to request a cancellation.
If you have already purchased the item for the buyer, you are not obligated to cancel the order. Nevertheless, if you have a receipt, you can try to return the item to the online store where you bought it. This way, both you and your buyer can get a refund.
If returning the item is not possible, please contact our so we can assist you.