diff --git a/main.go b/main.go
index ed9bb34..beac2c5 100644
--- a/main.go
+++ b/main.go
@@ -106,6 +106,8 @@ func main() {
 			return
 		}
 
+		log.Printf("Created initial wspay form (ammount=%d)", amount)
+
 		form := wspay.WsPayForm{
 			ShopID:         ShopId,
 			ShoppingCartID: entry.ShoppingCartID,
@@ -125,12 +127,16 @@ func main() {
 			c.AbortWithError(http.StatusInternalServerError, err)
 			return
 		}
+		log.Printf("Received success response for transaction %s", response.ShoppingCartID)
 		entry, err := wspayService.FetchByShoppingCartID(response.ShoppingCartID)
 		if err != nil {
+			log.Printf("Couldn't find payment info for transaction %s", response.ShoppingCartID)
 			c.AbortWithError(http.StatusInternalServerError, err)
 			return
 		}
+
 		if err := wspay.CompareFormReturnSignature(response.Signature, ShopId, ShopSecret, response.ShoppingCartID, response.Success, response.ApprovalCode); err != nil {
+			log.Printf("Invalid signature for transaction %s", response.ShoppingCartID)
 			c.AbortWithError(http.StatusBadRequest, err)
 			return
 		}
@@ -163,8 +169,10 @@ func main() {
 		}
 
 		if c.Query("iframe") != "" {
+			log.Printf("Transaction %s received correctly, returning iframe response", response.ShoppingCartID)
 			c.HTML(200, "iframe_handler.gohtml", gin.H{})
 		} else {
+			log.Printf("Transaction %s received correctly, returning redirect", response.ShoppingCartID)
 			c.Redirect(http.StatusTemporaryRedirect, "/")
 		}
 	})
@@ -177,8 +185,10 @@ func main() {
 			c.AbortWithError(http.StatusInternalServerError, err)
 			return
 		}
+		log.Printf("Received error response for transaction %s", response.ShoppingCartID)
 		entry, err := wspayService.FetchByShoppingCartID(response.ShoppingCartID)
 		if err != nil {
+			log.Printf("Couldn't find payment info for transaction %s", response.ShoppingCartID)
 			c.AbortWithError(http.StatusInternalServerError, err)
 			return
 		}
@@ -210,8 +220,10 @@ func main() {
 		}
 
 		if c.Query("iframe") != "" {
+			log.Printf("Transaction %s received correctly, returning iframe response", response.ShoppingCartID)
 			c.HTML(200, "iframe_handler.gohtml", gin.H{})
 		} else {
+			log.Printf("Transaction %s received correctly, returning redirect", response.ShoppingCartID)
 			c.Redirect(http.StatusTemporaryRedirect, "/")
 		}
 	})
@@ -230,8 +242,10 @@ func main() {
 			c.AbortWithError(http.StatusInternalServerError, err)
 			return
 		}
+		log.Printf("Received error response for transaction %s", response.ShoppingCartID)
 		entry, err := wspayService.FetchByShoppingCartID(response.ShoppingCartID)
 		if err != nil {
+			log.Printf("Couldn't find payment info for transaction %s", response.ShoppingCartID)
 			c.AbortWithError(http.StatusInternalServerError, err)
 			return
 		}
@@ -243,8 +257,10 @@ func main() {
 		}
 
 		if c.Query("iframe") != "" {
+			log.Printf("Transaction %s received correctly, returning iframe response", response.ShoppingCartID)
 			c.HTML(200, "iframe_handler.gohtml", gin.H{})
 		} else {
+			log.Printf("Transaction %s received correctly, returning redirect", response.ShoppingCartID)
 			c.Redirect(http.StatusTemporaryRedirect, "/")
 		}
 	})