If you are that confused, don't tell people what you think it means and then tell them to "pleaze read closer".
Pick your Norinco calibre. Order 4 crates of that calibre. Mention the 3 for 1 deal at checkout. You will only be billed for 3 crates.
That is all.
Your further explanation of what you thought it meant, or how you read it is irrelevant and confusing to someone who wants to take advantage of the deal.
You're welcome.
