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I have an access investing account with Morgan Stanley, and so I could open a co-branded Platinum card. Soon access investing will be migrated to e-trade, at which point I will have no eligible accounts for the co-branded Platinum. I'm wondering what the odds are my co-branded card would be grandfathered after the migration to e-trade, or whether it would be closed and points clawed back?
I don't think you'd lose your points and/or card. At least not just like that out of nowhere. I'm sure there'd be some sort of process/notification about how they're handling it.
Nothing would be clawed back whatsoever, but Amex's terms do state that if you cease to hold a qualifying MS account, that your card account will be closed.
They may grandfather you in, but it's hard to tell right now. The MS BCP card allows for both MS and E*Trade accounts to apply even though the card is only MS branded, so they made just open the product to both as well.