판매자한테 이렇게 메일이 왔어요ㅜㅜ

Hello Dear friend:
Thank you so much for trusting me and purchasing here, I shipped the item to you in 12hours after receive your payment without any delay.
I am sorry but about shipping time, the item was shipped from China, it will take 17-28 working days after shipping.
About shipping fee, the item cost less than $20, if I shipped with tracking NO, the tracking No fee is $4, so I shipped without without tracking no, thank you so much for your understanding and patience,
Please dont worry, if you have not received the item in 30 days after make your order, please connect me.I will reship another new item to you or refund you the money as compensation.
Thank you so much again.
Best Regards,
Happyshopping2014제가 4달러를 추가로 내야한다는건가요??....번역 부탁드려요...