diff --git a/examples/with_async/retail_outlet.js b/examples/with_async/retail_outlet.js
index 2db7fad..d28013d 100644
--- a/examples/with_async/retail_outlet.js
+++ b/examples/with_async/retail_outlet.js
@@ -26,6 +26,18 @@ const ro = new RetailOutlet({});
     // eslint-disable-next-line no-console
     console.log('updated payment code details:', updatedPmCode);
 
+    await ro.simulatePayment({
+      retailOutletName: 'ALFAMART',
+      paymentCode: updatedPmCode.payment_code,
+      transferAmount: 12000,
+    });
+    // eslint-disable-next-line no-console
+    console.log('simulated payment:', updatedPmCode);
+
+    const paymentsByCodeId = await ro.getPaymentsByFixedPaymentCodeId({ id });
+    // eslint-disable-next-line no-console
+    console.log('payments by fixed payment code ID:', paymentsByCodeId);
+
     process.exit(0);
   } catch (e) {
     console.error(e); // eslint-disable-line no-console
diff --git a/examples/with_promises/retail_outlet.js b/examples/with_promises/retail_outlet.js
index f360948..8c25328 100644
--- a/examples/with_promises/retail_outlet.js
+++ b/examples/with_promises/retail_outlet.js
@@ -31,6 +31,27 @@ ro.createFixedPaymentCode({
     console.log('updated payment code details:', r);
     return r;
   })
+  .then(({ id, payment_code }) =>
+    Promise.all([
+      id,
+      ro.simulatePayment({
+        retailOutletName: 'ALFAMART',
+        paymentCode: payment_code,
+        transferAmount: 12000,
+      }),
+    ]),
+  )
+  .then(r => {
+    // eslint-disable-next-line no-console
+    console.log('simulated payment:', r);
+    return r;
+  })
+  .then(([id]) => ro.getPaymentsByFixedPaymentCodeId({ id }))
+  .then(r => {
+    // eslint-disable-next-line no-console
+    console.log('payments by fixed payment code ID:', r);
+    return r;
+  })
   .catch(e => {
     console.error(e); // eslint-disable-line no-console
     process.exit(1);