Extra duty fees charged on Dressinn purchases

Purchased 2 items from Dressinn.com and those items got held up in South African customs. So what they don't mention to buyers is the extra charges and penalties you will still have to pay to South African revenue services. My purchase price was R1989 but I paid a further R1310 in duty fees so it's not worth it rather buy local once or you might end up paying triple the price of a local supplier.