Hi,
They approved my Business Platinum a couple of weeks back (100k after 10k) and I got another Gold offer in the mail (Business 50k after 5k with first year fee waived). Called, applied and was approved. They just stated the 50k points etc. no question if I had a similar product etc. as they saw it on their end (the platinum was even referred to).
Guess Business cards are better for Amex than Private ones