| Name | Type | Description | Notes |
|---|---|---|---|
| code | String | Additional amount type. This field is supported only for American Express Direct. For processor-specific information, see the additional_amount_type field in Credit Card Services Using the SCMP API. | [optional] |
| amount | String | Additional amount. This field is supported only for American Express Direct. For processor-specific information, see the additional_amount field in Credit Card Services Using the SCMP API. | [optional] |