diff --git a/README.md b/README.md
index 57d53ed..d1e8d46 100644
--- a/README.md
+++ b/README.md
@@ -38,7 +38,7 @@
 
 ### Requirements
 
-- Android 5.0 (API level 21) and above
+- Android 6.0 (API level 21) and above
 
 ### Configuration
 
@@ -144,11 +144,12 @@ The response object contains these properties:
 
 - `code` describing the result's type.
 
-  | Code        | Description                                                   |
-  | ----------- | ------------------------------------------------------------- |
-  | `COMPLETED` | The payment was successful.                                   |
-  | `FAILED`    | The payment failed. Check the `message` for more information. |
-  | `CANCELED`  | The customer canceled the payment.                            |
+  | Code | Description |
+  | --- | --- |
+  | `COMPLETED` | The payment was successful. |
+  | `FAILED` | The payment failed. Check the `message` for more information. |
+  | `CANCELED` | The customer canceled the payment. |
+  | `UNCLEAR` | The customer has aborted the payment process, so the payment is in a temporarily unclear state. It will eventually reach a final status (successful or failed), but it may take a while. Wait for a webhook notification and use the Wallee API to retrieve the status of the transaction and inform the customer that the payment is unclear. |
 
 - `message` providing a localized error message that can be shown to the customer.