False advertising

These people advertised a sale for a 10inch grade 11A wig for R550 and when I got my hair it wasn’t what they had advertised. It’s old hair mixed and it is shorter. I told them I wasn’t happy and they basically said there is nothing they could do. I told them I want my money back because they gave me the wrong thing and no one responded to me. They aren’t even answering their phones. Please help me get my money back