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    Upgrading
    You can install a newer version of the plugin using 
OpenCart
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                Office.- To uninstallVisa Acceptance SolutionsPayment, navigate toExtensions > Extension Types > Paymentsand then uninstall all of theVisa Acceptance Solutionspayment modules.
 - To uninstallVisa Acceptance SolutionsTax, under the same Extension dropdown, selectOrder Totalsand uninstallVisa Acceptance SolutionsTax.
 - To uninstall theVisa Acceptance SolutionsPayment extension, under the Extension dropdown, selectModules, and uninstall theVisa Acceptance SolutionsPayment extension.
 - Navigate to the Extensions tab and clickInstaller, then clickDeleteto remove theVisa Acceptance Solutionsextension.
 - Navigate back to the Extensions tab and clickModification, then clickRefresh.
 - To install the newVisa Acceptance SolutionsPayment extension, follow the steps mentioned in Installation.