https://portaldev.eonpayments.com/api/v01/merchants/[merchant-code]/pre-rules/[rule-id]                
            Pre-Rule to validate billing address, issuing bank countries, card type.
                                                                        | Method: DELETE | Implicit: Yes | Returns: ServiceResponse | 
| Consumes: json, xml, xurl | Produces: json, xml, xurl | |
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                                        Deletes a selected rule from the system. 
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                                                                        | Method: GET | Implicit: Yes | Returns: PreRule | 
| Consumes: json, xml, xurl | Produces: json, xml, xurl | |
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                                        Loads the existing rule. 
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