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After that, all transactions will be recorded in both Magento 2 store and eWAY including successful transaction, fail transaction, and refund.  

Note that it requires you to use Refund online on backend of Magento 2 store to synchronize refund data to eWAY. 

From Invoices page on backend of Magento 2 store, click on Credit Memo button. The new Memo page will appear as below. Click on the Refund button to have refund online. 

Image Added

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Update

• When a new update is available, we will provide you with a new package containing our updated extension.
• You will have to delete the module directory and repeat the installing steps above.
• Flush the config cache. Your store and newly installed module should be working as expected.

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