I have read the Wiki but not necessarily the entire thread. I have been using Serve card now for a while but have not done much MS with the card. Primarily used for regular purchases by loading with debit card bought at Grocery store using the old AMEX Blue thereby giving me 5% cash back - fees on all purchases. Serve card is also linked to ISIS loaded on my son's Android phone (only Android device in house, rest are iPhones) and used his phone for pay with ISIS deals occasionally. Thinking of buying a NFC cashwrap so I don't have to borrow my son's phone. Hence the following questions came to mind:
Does Serve issue Authorized user cards?
Is the Authorized User card number same as primary(live VISA / MC or like AMEX)?
Can the second authorized user card be linked to a second phone without deleting the primary card linked to the existing phone number for ISIS purposes?
Does having an authorized user card increase the potential for more AMEX Sync deals in the future?