diff --git a/lib/google/src/main/java/com/zuko/billingz/google/store/sales/GoogleResponse.kt b/lib/google/src/main/java/com/zuko/billingz/google/store/sales/GoogleResponse.kt
index 3e5ff78..740bfd1 100644
--- a/lib/google/src/main/java/com/zuko/billingz/google/store/sales/GoogleResponse.kt
+++ b/lib/google/src/main/java/com/zuko/billingz/google/store/sales/GoogleResponse.kt
@@ -38,79 +38,79 @@ object GoogleResponse {
             BillingClient.BillingResponseCode.OK -> {
                 Logger.d(
                     TAG,
-                    "${BILLING_RESPONSE}: " + "\n " + BillingClient.BillingResponseCode.OK.toString() + "\n message: OK"
+                    "$BILLING_RESPONSE: " + "\n " + BillingClient.BillingResponseCode.OK.toString() + "\n message: OK"
                 )
             }
             BillingClient.BillingResponseCode.USER_CANCELED -> {
                 Logger.w(
                     TAG,
-                    "${BILLING_RESPONSE}: " + "\n code: " + BillingClient.BillingResponseCode.USER_CANCELED.toString() + "\n message: ${billingResult.debugMessage}"
+                    "$BILLING_RESPONSE: " + "\n code: " + BillingClient.BillingResponseCode.USER_CANCELED.toString() + "\n message: ${billingResult.debugMessage}"
                 )
             }
             BillingClient.BillingResponseCode.BILLING_UNAVAILABLE -> {
                 Logger.w(
                     TAG,
-                    "${BILLING_RESPONSE}: " + "\n code: " + BillingClient.BillingResponseCode.BILLING_UNAVAILABLE.toString() + "\n message: ${billingResult.debugMessage}"
+                    "$BILLING_RESPONSE: " + "\n code: " + BillingClient.BillingResponseCode.BILLING_UNAVAILABLE.toString() + "\n message: ${billingResult.debugMessage}"
                 )
             }
             BillingClient.BillingResponseCode.DEVELOPER_ERROR -> {
                 Logger.e(
                     TAG,
-                    "${BILLING_RESPONSE}: " + "\n code: " + BillingClient.BillingResponseCode.DEVELOPER_ERROR.toString() + "\n message: ${billingResult.debugMessage}"
+                    "$BILLING_RESPONSE: " + "\n code: " + BillingClient.BillingResponseCode.DEVELOPER_ERROR.toString() + "\n message: ${billingResult.debugMessage}"
                 )
             }
             BillingClient.BillingResponseCode.ERROR -> {
                 Logger.e(
                     TAG,
-                    "${BILLING_RESPONSE}: " + "\n code: " + BillingClient.BillingResponseCode.ERROR.toString() + "\n message: ${billingResult.debugMessage}"
+                    "$BILLING_RESPONSE: " + "\n code: " + BillingClient.BillingResponseCode.ERROR.toString() + "\n message: ${billingResult.debugMessage}"
                 )
             }
             BillingClient.BillingResponseCode.FEATURE_NOT_SUPPORTED -> {
                 Logger.w(
                     TAG,
-                    "${BILLING_RESPONSE}: " + "\n code: " + BillingClient.BillingResponseCode.FEATURE_NOT_SUPPORTED.toString() + "\n message: ${billingResult.debugMessage}"
+                    "$BILLING_RESPONSE: " + "\n code: " + BillingClient.BillingResponseCode.FEATURE_NOT_SUPPORTED.toString() + "\n message: ${billingResult.debugMessage}"
                 )
             }
             BillingClient.BillingResponseCode.ITEM_ALREADY_OWNED -> {
                 Logger.w(
                     TAG,
-                    "${BILLING_RESPONSE}: " + "\n code: " + BillingClient.BillingResponseCode.ITEM_ALREADY_OWNED.toString() + "\n message: ${billingResult.debugMessage}"
+                    "$BILLING_RESPONSE: " + "\n code: " + BillingClient.BillingResponseCode.ITEM_ALREADY_OWNED.toString() + "\n message: ${billingResult.debugMessage}"
                 )
             }
             BillingClient.BillingResponseCode.ITEM_NOT_OWNED -> {
                 Logger.w(
                     TAG,
-                    "${BILLING_RESPONSE}: " + "\n code: " + BillingClient.BillingResponseCode.ITEM_NOT_OWNED.toString() + "\n message: ${billingResult.debugMessage}"
+                    "$BILLING_RESPONSE: " + "\n code: " + BillingClient.BillingResponseCode.ITEM_NOT_OWNED.toString() + "\n message: ${billingResult.debugMessage}"
                 )
             }
             BillingClient.BillingResponseCode.ITEM_UNAVAILABLE -> {
                 Logger.w(
                     TAG,
-                    "${BILLING_RESPONSE}: " + "\n code: " + BillingClient.BillingResponseCode.ITEM_UNAVAILABLE.toString() + "\n message: ${billingResult.debugMessage}"
+                    "$BILLING_RESPONSE: " + "\n code: " + BillingClient.BillingResponseCode.ITEM_UNAVAILABLE.toString() + "\n message: ${billingResult.debugMessage}"
                 )
             }
             BillingClient.BillingResponseCode.SERVICE_DISCONNECTED -> {
                 Logger.w(
                     TAG,
-                    "${BILLING_RESPONSE}: " + "\n code: " + BillingClient.BillingResponseCode.SERVICE_DISCONNECTED.toString() + "\n message: ${billingResult.debugMessage}"
+                    "$BILLING_RESPONSE: " + "\n code: " + BillingClient.BillingResponseCode.SERVICE_DISCONNECTED.toString() + "\n message: ${billingResult.debugMessage}"
                 )
             }
             BillingClient.BillingResponseCode.SERVICE_TIMEOUT -> {
                 Logger.e(
                     TAG,
-                    "${BILLING_RESPONSE}: " + "\n code: " + BillingClient.BillingResponseCode.SERVICE_TIMEOUT.toString() + "\n message: ${billingResult.debugMessage}"
+                    "$BILLING_RESPONSE: " + "\n code: " + BillingClient.BillingResponseCode.SERVICE_TIMEOUT.toString() + "\n message: ${billingResult.debugMessage}"
                 )
             }
             BillingClient.BillingResponseCode.SERVICE_UNAVAILABLE -> {
                 Logger.e(
                     TAG,
-                    "${BILLING_RESPONSE}: " + "\n code: " + BillingClient.BillingResponseCode.SERVICE_UNAVAILABLE.toString() + "\n message: ${billingResult.debugMessage}"
+                    "$BILLING_RESPONSE: " + "\n code: " + BillingClient.BillingResponseCode.SERVICE_UNAVAILABLE.toString() + "\n message: ${billingResult.debugMessage}"
                 )
             }
             else -> {
                 Logger.wtf(
                     TAG,
-                    "Unhandled ${BILLING_RESPONSE}: ${billingResult?.responseCode}"
+                    "Unhandled $BILLING_RESPONSE: ${billingResult?.responseCode}"
                 )
             }
         }
diff --git a/lib/google/src/main/java/com/zuko/billingz/google/store/sales/GoogleSales.kt b/lib/google/src/main/java/com/zuko/billingz/google/store/sales/GoogleSales.kt
index a4c1106..de138e1 100644
--- a/lib/google/src/main/java/com/zuko/billingz/google/store/sales/GoogleSales.kt
+++ b/lib/google/src/main/java/com/zuko/billingz/google/store/sales/GoogleSales.kt
@@ -141,8 +141,8 @@ class GoogleSales(
         Logger.d(
             TAG,
             "startOrder => " +
-                    "\n product: $product," +
-                    "\n options: $options"
+                "\n product: $product," +
+                "\n options: $options"
         )
 
         if (product is GoogleProduct && client is GoogleClient) {
@@ -273,9 +273,9 @@ class GoogleSales(
         Logger.d(
             TAG,
             "startSubscriptionPurchaseFlow =>" +
-                    "\n skuDetails: $skuDetails," +
-                    "\n productDetails: $productDetails," +
-                    "\n options: $options"
+                "\n skuDetails: $skuDetails," +
+                "\n productDetails: $productDetails," +
+                "\n options: $options"
         )
         if (activity == null || (skuDetails == null && productDetails == null) || billingClient == null) {
             return BillingResult.newBuilder()
@@ -382,9 +382,9 @@ class GoogleSales(
         Logger.d(
             TAG,
             "startInAppPurchaseFlow =>" +
-                    "\n skuDetails: $skuDetails," +
-                    "\n productDetails: $productDetails," +
-                    "\n options: $options"
+                "\n skuDetails: $skuDetails," +
+                "\n productDetails: $productDetails," +
+                "\n options: $options"
         )
         if (activity == null || (skuDetails == null && productDetails == null) || billingClient == null) {
             return BillingResult.newBuilder()