Hi,
I think you’re confused. First off, this is a public forum - we are normal users just like you. If you have feedback or need help then you should contact Envato support.
Second, if you add the item to your cart and then checkout from shopping cart, you can pay $54.80 instead of $60 (there’s a $2 handling fee). Credit card or paypal. What you’re trying to do is add funds to your account, rather than check out the item.