diff --git a/extension-iap/src/iap_android.cpp b/extension-iap/src/iap_android.cpp
index e8d37a5..9c1f15b 100644
--- a/extension-iap/src/iap_android.cpp
+++ b/extension-iap/src/iap_android.cpp
@@ -213,8 +213,9 @@ static int IAP_SetListener(lua_State* L)
 
     bool had_previous = iap->m_Listener != 0;
 
-    if (iap->m_Listener)
+    if (iap->m_Listener) {
         dmScript::DestroyCallback(iap->m_Listener);
+    }
 
     iap->m_Listener = dmScript::CreateCallback(L, 1);
 
@@ -223,7 +224,10 @@ static int IAP_SetListener(lua_State* L)
         dmAndroid::ThreadAttacher threadAttacher;
         JNIEnv* env = threadAttacher.GetEnv();
         env->CallVoidMethod(g_IAP.m_IAP, g_IAP.m_ProcessPendingConsumables, g_IAP.m_IAPJNI);
+        dmLogInfo("IAP: Processing pending transactions");
     }
+
+    dmLogInfo("IAP listener set");
     return 0;
 }
 
@@ -348,7 +352,7 @@ static void HandlePurchaseResult(const IAPCommand* cmd)
 
     if (!dmScript::SetupCallback(cmd->m_Callback))
     {
-        dmLogError("Failed to setup callback");
+        dmLogError("No callback set for purchase result!");
         assert(top == lua_gettop(L));
         return;
     }