I am buying some packages in amazon how to start shipping with you? I send it to your address under my name and already?

Hi. You can register on their website. http://southcargollc.com/ingreso/ You should receive an email with instructions on how to make your shipments.

I think you have to go to South Cargo in person and process your post office or box so they know who you are and where the packages are going. But they are retained and considered as an unknown shipper or unknown shipper.