StripeJS collectBankAccount Error: Use 'USBankAccount' as Payment Method Type

I'm collecting US bank account details using Stripe to enable future payouts, but I'm encountering this error on the frontend:

JSONCopied
{
    "code": "Failed",
    "declineCode": null,
    "localizedMessage": "collectBankAccount currently only accepts the USBankAccount payment method type.",
    "message": "collectBankAccount currently only accepts the USBankAccount payment method type.",
    "stripeErrorCode": null,
    "type": null
}

I am explicitly setting the payment method type as 'us_bank_account' in my React Native code:

JAVASCRIPTCopied
const { error } = await collectBankAccountForSetup({
    clientSecret: PaymentSetupIntent, // payment setup intent secret from the backend
    params: {
        payment_method_type: 'us_bank_account',
        payment_method_data: {
            billing_details: {
                name: `${profileData.firstName} ${profileData.lastName}`,
                email: profileData.email
            }
        }
    }
})

And here’s the related backend snippet in Express:

JAVASCRIPTCopied
// this is the setup intent that gets passed to the frontend
const setupIntent = await stripeClient.setupIntents.create({
    customer: customerID,
    payment_method_types: ['us_bank_account']
})

The error suggests that the Stripe frontend expects the exact identifier "USBankAccount" (with proper casing) rather than "us_bank_account". I’d appreciate insights on resolving this mismatch.