This is what I received via chat at MyJH with Jackson Hewitt:
If you did not receive a Refund Advance or select Assisted Refund, your stimulus should go on your American Express Serve card.
If you received a Refund Advance or used Assisted Refund and selected a prepaid American Express Serve card, it has yet to be determined how the IRS will distribute your funds.
Please bookmark https://www.jacksonhewitt.com/tax-help/coronavirus for updates as they become available on this situation.
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