Hello. My dear friend.
The shipping cost is according to the weight of your package, not the number of your package.
So you will pay 8.28 after discount trace 50 percent.
But we are friends, i hope you could buy more items in my shop in the future.
So you only should pay for 5 $ for the shipping.
That's ok?
Waiting for your reply.
Thanks.
Have a nice day.