Originally Posted by GUWonder

Given Amex is in the business of trying to comply with KYC and AML requirements for personal card accounts opened everywhere Amex opens retail personal accounts, I would say that at some point Amex would have put down something about income/assets for an account or that the account would potentially be subject to shut down. If you’re just an AU on an account where someone else’s name is noted as the primary, then Amex may indeed have little to no clue about the income/assets of you as an AU card holder.