Does anyone else have trouble with adding users on Discover's website? IF you don't type in the authorized user's address correctly in the format that Discover likes, it claims the "physical address" is incorrect. You can try to retype the address in different ways and still get the same outcome, it's like their software has no common sense. I have had a couple of users declined because of this.
Yes, I've had that happen, but now I always tweak the address to what they want (I think matches US postal regulations or something?), and never had an AU not show up correctly.
Once with the old company I had to email for clarification on an address, but now just manually tweak myself.
For example, I use "APT" instead of #, if they're like "123 Main Street #54."
Also I put APT and the number in Barclays, too, in the main line, even though they have a separate box for apartment (I just ignore that, and put it on the main line).