 Â Add | Adds an e-Books VAT exemption cause. |
| Â Delete | Deletes an existing e-Books VAT exemption cause. |
| Â Get | Retrieves an e-Books VAT exemption cause. The cause is specified by its key, which is contained in the `EBooksVATExemptionCauseParams` object passed to the method. |
| Â GetDataInterface | Creates an empty data structure for use with the `EBooksVATExemptionCausesService`. |
| Â GetDataInterfaceFromXMLFile | Creates an object from an XML file. |
| Â GetDataInterfaceFromXMLString | Creates an object from XML. |
| Â GetList | Returns the `EBooksVATExemptionCauseParamsCollection` data collection that identifies all e-Books VAT exemption causes. |
| Â Update | Updates an existing e-Books VAT exemption cause. |