American Airlines AA Lack of information about a limit of baggage due to embargo, in addition to the lost of a bag Nationwide

I booked ticket flights about 2 months ago from EUG to VCP for a trip that means my change from the life in US and the back to my country of origin, Brazil. The trip was EUG-LAX, LAX-MIA, MIA-BSB and BSB-VCP. Since the tickets purchase day up to the night before the trip, I have been looking at the website and AA app to see how could I carry all my bags, and only could have the information of prices for additional 3rd, 4th bags and so on, which I should purchase personally at the check in. All I have is in 5 bags, 4 large ones and 1 carry on, and I just have 2 in my hands now, since 2 bags I couldn't even purchase additional room for them in my flight due to an embargo and they are still in US with a friend who fortunately was with me at check in time. The other bag was lost between connections LAX-MIA and after a whole day negotiation between me-AA-Latam they could find the bag and set a day to deliver this for me. Regarding the embargo, I hadn't seen this notification before on the website nor at the app, just on the day of my flight at the check in, which was very embarrassing crying there due to all this odd situation in the middle of a disbelieve, frustration and stress. My flight was the exact day of the begining of the embargo, so I suppose that this note was inserted on website just that day, June 1st 2018. I already messaged AA and they just could say that I should have called AA prior the purchase of tickets to check for personal questions about my trip because they cannot predict specific questions of each customer, besides they sent only a sorry, since that this situation is different and they cannot do anything. Well, I understand that such a basic and crucial information as an embargo (imposing limitation of 2 bags per person with no possibility to additional bags) is not a specific question, and the company supposing that each client must call the company and wait for hours to have basic information about a trip that they just booked is absurd. Customers select the product through information they collect to choose the best option, even more to purchase a very expensive flight for a moving of country. I don't see where I did wrong and all I see is that I am a victim that suffered two big harms and now I need to figure out how to afford an international shipping of 2 bags of 50 lb to my country. I am stressed out and spending too much time on it messaging companies of international moving, mail and personal delivers. I want a retreat for all this harm, because all I wanted was to back home in peace and it did not happen at all.