MarocUnlocking, owing over $2,000 refund

Mr. Amine Edrissu (not sure if spelled correctly) is a great guy of course and I don’t think he is cheating, but I cannot contact him, and he has owed a refund of over $ 2,000 for more than a year now. I am trying to be understanding about the situation but it is very frustrating, does anyone have working contact details to help resolve this?