I ended up with a Business Gold card when I called Amex regarding an issue with my Amex Platinum card. I had just paid off $13,000 in charges in a month for the many flights and things for our new house here in Japan. This is unusually high balance for me to rack up, but I don’t know if this flagged me for an offer of 75,000 membership points to make $5,000 in purchases in three months. So why not? They let me get a card as a sole proprietor of my business using my SSN as the tax ID. I got the card and completed the offer and got my 75,000 points, but I also learned a lot about this card, and why it’s much better than the Amex Platinum in terms of earning points.