I agree, it looks like the poster is trying to get someone to do something illegal....
He wants to buy a particular item from a particular company, but he has every excuse in the world as to why he cannot pay them himself and have the item shipped directly to him ("I don't have checks, I have a bankcard but no checking account, can someone please help me and pick up some extra cash as an incentive? I can't seem to pick up the phone, call or email this company myself, and find out how to order an item from them using a payment method other than a check or credit card....")
Doh!
You want someone else to buy an item from this company that they are likely prohibited by law from selling to you because you either are a minor or live in a state where the product is outlawed.
You are offering "someone" some "extra cash" to procure this item for you and then ship it to you.
I can't imagine anyone on this board being so hard up for the tiny amount of cash that you could pay, that they would do something like this. The legal ramifications alone....give me a break. Who is gonna risk jail time for a total stranger? I wouldn't even do this for someone I knew, let alone some kook on the Internet. You could be anybody. Imagine if someone bought a weapon on your behalf and then shipped it to you and you used it to kill someone. Imagine the person who bought it being charged as an accessory to a murder. Etc, etc, ad nauseum.
Suggest you spend your time on more wholesome pursuits. LOL.