I want to cancel a swap

Please, I want to cancel a swap.
Is this . https://en.numista.com/echanges/echange.php?id=455536
I have informed and I explained why I want to cancel it him.
"Conversation with xycap
Go to inbox
Go to sentbox
Go to savebox
Show previous messages

sroussos – 25th October 2017, 08:14PM
Re: Swap ·1·
You don't sent coins i will not received it and I will not sent my coins . The swap canceled"
Please someone from of Numista team let us read our reports to understand why ,and cancel swap 2 .
Best regards
Stergios Roussos