"I didn't get any refund policy".

You did not get any refund policy from this person and are now trying to trash their name? I pray that a moderator removes this because it looks to me like you did not give the full story and that is not what this forum is made for. There are many unanswered questions. Is there a signed contract? Did this person agree to pay you anything back? In this post, you mention live streaming, does that mean that this was for the creating of a website? If so, can you post your website here so that we may look at it and judge for ourselves?