Here is the reply in case a link changes:

This tank doesn’t have a dot label on it. The description clearly says dot-4ba400 but there’s not label or stamped information on the tank. Also has no date of manufacture.
world-etrade : Dear Sir or Madame,
Thank you for your message.
It is a pity that the article can not satisfy you.
Could you keep the article?
If you can keep the item, then we can refund 5usd as compensation.
Fine?
We

They are new bottles, Whoever made them even picked the same paint scheme as approved bottles in the USA. Most of mine, Amtrol come from Portugal , but meet all the standards. The Thing is it's probably not illegal to sell them ,just to use them. I'm sure the seller isn't even aware why the buyer is complaining . Felt bad for the guy who got scammed.

On another note: I pray everyone here at XS makes it through this pandemic OK. You've collected a whole lot of members from around the word Charles.