admin appear automatically cart changes code cost count delete disable discount dropdown help instructions max nor order package page product products quantity rates sell seller sells settings setup shipping standard submit usps website zip

My product sells for $2 apiece (still trying to figure out how to make the minimum of 2 appear in cart), but I am having troubles allocating shipping rates to a specific dollar amount. The maximum amount of shipping is $20 and I have calculated the percentage discount of each figure to the max ($1.50 is 7.5% of $20.00 so a discount of 92.5% applies).
Each increment of product order adds another $18.50 to cost of order.
Any help?
Here are the figures.

Dollar amount order Shipping
$4 $1.50
$6-10 $1.75
$12-20 $2.50
$22-30 $3.50
$32-40 $4.00
$42-100 $6.00
$102-200 $8.00
$202-1000 $12.50
$1002-2000 $20.00

I'll assume you've already seen the "order amount based shipping" on this page:
http://www.e-junkie.com/ej/help.shipping.php

After following those setup instructions, make sure all your product and package weights are set to 0.00 and, for good measure, also delete your zipcode from your Seller Admin > Cart Shipping Settings (and be sure to Submit changes there), which will disable our standard USPS shipping calculation.

Unfortunately, there is no way to force a minimum quantity of 2, nor to "pre-fill" the quantity as 2. Perhaps you could simply sell your products in 2-packs?

I did all of that and end up with negative totals of $22 for one product, then ordering 2 products = -$13. For some reason my discounts are not being applied as they should be.

Here's is what I have inputted (after having no zip code entered, and having '0' quantities for both product & package rates):
92% discount applied to shipping
minimum order = 4.0
max use count = 0
discount expires in 2020
hit submit and then when totaled on my website an order for 2 tags = -$13??

What did I do wrong?

Did you make sure to choose "apply discount to shipping" in the dropdown instead of "apply discount to order?" I made the same mistake at first. It automatically applies the discount to the order if you don't change it.