No available customer service for wrong product delivery.

I live in George and ordered and paid for a product which was sent by courier within 3 days. Great! Except I found that it was the wrong product after opening the package. I've submitted feedback on their website two or three times, without any response from them. I can't find a customer service number anywhere on the website either, and I'd like to return the product and get a refund. It wasn't cheap!