Q: American express card is deleted from apple pay

I need help.  I can not use my american express credit card thru apple pay.  Whenever I activate it I get a message from american express that it is activated.  Then within minutes I receive a message that says it has been deleted because I have either logged out of icloud or turned off passcode.  I have done neither.  This has been an ongoing issue for months.  Every time I remove the card and re add it back the same thing happens.  Makes Apple pay useless for me.  Please help