Refine strings

src/Helper/Helper_Data.php

@@ -181,10 +181,11 @@ public function addon_license_responses( $addon_name ) {
 			'missing'             => __( 'This license key is invalid. Please check your key has been entered correctly.', 'gravity-forms-pdf-extended' ),
 			'invalid'             => __( 'The license key is invalid. Please check your key has been entered correctly.', 'gravity-forms-pdf-extended' ),
 			'site_inactive'       => __( 'Your license key is valid but does not match your current domain. This usually occurs if your domain URL changes. Please resave the settings to activate the license for this website.', 'gravity-forms-pdf-extended' ),
-			'item_name_mismatch'  => sprintf( __( 'This license key is invalid for %s.', 'gravity-forms-pdf-extended' ), $addon_name ),
-			'no_activations_left' => sprintf( __( 'This license key has reached its activation limit. %1$sPlease upgrade your license to increase the site limit (you only pay the difference)$2$s.', 'gravity-forms-pdf-extended' ), '<a href="%s">', '</a>' ),
+			'item_name_mismatch'  => sprintf( __( 'This license key is not valid for %s. Please check your key is for this product.', 'gravity-forms-pdf-extended' ), $addon_name ),
+			'invalid_item_id' => sprintf( __( 'This license key is not valid for %s. Please check your key is for this product.', 'gravity-forms-pdf-extended' ), $addon_name ),
+			'no_activations_left' => sprintf( __( 'This license key has reached its activation limit. %1$sPlease upgrade your license to increase the site limit (you only pay the difference)%2$s.', 'gravity-forms-pdf-extended' ), '<a href="%s">', '</a>' ),
 			'default'             => __( 'An error occurred, please try again.', 'gravity-forms-pdf-extended' ),
-			'generic'             => __( 'An error occurred during activation, please try again.', 'gravity-forms-pdf-extended' ),
+			'generic'             => __( 'An error occurred, please try again.', 'gravity-forms-pdf-extended' ),
 		];
 	}