diff --git a/app/Http/Controllers/BillplzTransactionSummaryController.php b/app/Http/Controllers/BillplzTransactionSummaryController.php
index daf94ee..dbfcf00 100644
--- a/app/Http/Controllers/BillplzTransactionSummaryController.php
+++ b/app/Http/Controllers/BillplzTransactionSummaryController.php
@@ -11,7 +11,13 @@ class BillplzTransactionSummaryController extends Controller
     {
         $date = $request->selectedDate ?? Carbon::now()->toDateString();
         
-        $transactionData = Http::arrahn()->get('/api/transaction/online/query', ['date' => $date, 'status' => 'paid'])->json();
+        $transactionData = collect( Http::arrahn()->get('/api/transaction/online/query', ['date' => $date, 'status' => 'paid'])->json() );
+         
+        // Group transactionData by bill_id
+        $transactionData = $transactionData->groupBy(function($transaction) {
+            return $transaction['billplz_id'];
+        })->toArray();
+        
         $transactionData = array_map(fn($x) => ['arrahn_transactions' => $x], $transactionData);
         $transactionData = collect($transactionData);