So I was thinking about asking my dad to add me as an AU to his AMEX Costco card but when I asked whether or not he's missed payments, he replied with "many times". This scared me away since I did not want to have a bad credit history added to my own but I still wanted that AMEX membership date.
Is there a way to be added as an AU to secure a membership date that can be later used when I open my own AMEX card (to increase my AAoA) then quickly closely the AU before it reports to the credit bureaus on my credit report???
I thought they do backdate AUs/ACMs, but they backdate to the year the AU/ACM is added, not to the member since date of the primary cardholder.