diff --git a/app/Http/Controllers/BillplzTransactionSummaryController.php b/app/Http/Controllers/BillplzTransactionSummaryController.php
index d2a1f21..9007045 100644
--- a/app/Http/Controllers/BillplzTransactionSummaryController.php
+++ b/app/Http/Controllers/BillplzTransactionSummaryController.php
@@ -32,21 +32,56 @@ class BillplzTransactionSummaryController extends Controller
 	$transactionData = $this->processArrahnTransactions($transactionData);
 
 	$billIds = $transactionData->map(fn($x) => ['bill_id' => $x['bill_id'], 'account_own_by' => $x['account_own_by']]);
+
+	$billIds = $billIds->chunk(40);
     
-    $billplzBillsResponse = Http::get(config('api.url_arrahn_portal') . '/api/billplz', ['bill_ids' => json_encode($billIds)]);
+    $queryBillIdsURL = $billIds->map(fn($x) => url(config('api.url_arrahn_portal') . '/api/billplz', ['bill_ids' => json_encode($x)]));
     
-    if($billplzBillsResponse->failed()) {
-        
-        Log::error("ArrahnPay Portal API request failed for URL: {$billplzBillsResponse->effectiveUri()->__toString()}", [
-            'status' => $billplzBillsResponse->status(),
-            'body' => $billplzBillsResponse->body(),
-        ]);
-        
-        abort( response('Portal ArrahnPay kemungkinan tidak beroperasi. Waktu Operasi Portal ArrahnPay adalah dari 7.30 AM hingga 11.30 PM', 503) );
-        
-    }
+
+	$getBillplzPromise = function($url){
+            return Http::async()->get($url);
+	};
     
-    $billplzBills = $billplzBillsResponse->json();
+	$resolveBillplzPromise = function($promise){
+            $billplzBillsPromise = $promise->wait()->json();
+            
+		    if($billplzBillsPromise->failed()) {
+			
+                Log::error("ArrahnPay Portal API request failed for URL: {$$billplzBillsPromise->effectiveUri()->__toString()}", [
+                    'status' => $billplzBillsPromise->status(),
+                    'body' => $billplzBillsPromise->body(),
+                ]);
+                
+                abort( response('Portal ArrahnPay kemungkinan tidak beroperasi. Waktu Operasi Portal ArrahnPay adalah dari 7.30 AM hingga 11.30 PM', 503) );
+			
+            }
+    
+		  return $billplzBillsPromise;
+	};
+
+    $queryBillIdsURL = $queryBillIdsURL->map(fn($x) => $getBillplzPromise($x))
+                                       ->map(fn($x) => $resolveBillplzPromise($x));
+                                       
+    dd($queryBillIdsURL->all());
+
+	$mergeBillplzResponse = function($externalArray) {
+	    $merged = [];
+
+	    foreach ($externalArray as $key => $subArray) {
+            foreach (['KOPKB', 'PKB'] as $type) {
+                if (!isset($merged[$type])) {
+                $merged[$type] = [];
+                }
+    
+                $merged[$type] = array_merge($merged[$type], $subArray[$type]);
+            }
+	    }
+
+	    return array_map('array_values', $merged);
+	};
+    
+	$billplzBillsResponse = $billIds->map(fn($x) => $getBillplzResponse($x));
+	$billplzBills = $mergeBillplzResponse($billplzBillsResponse);
 
 	$data = array_map(fn($x, $y) => $this->processBillplzBills($x, $y), $billplzBills, [$transactionDataKOOP, $transactionDataPKB]);