Reclamo N° 206723

Good morning. I bought an item online to an italian shop. After the payment ( with free shipping price) the seller told me that I should pay shipping price(arround 20€) because the webpage had an issue. So I told to the seller to please cancel my order and receive the refund... I received just insults and he didn't sent me the money back. I'm really worried about this situation because I spent arround 120€ . I'm sending many emails and he is not replying. If is neccesary I can provide you the invoice. Thank you Javier