diff --git a/tests/Feature/AdminPlatformOrderIndexQuickFiltersRefundedAndPartiallyRefundedShouldPreserveContextTest.php b/tests/Feature/AdminPlatformOrderIndexQuickFiltersRefundedAndPartiallyRefundedShouldPreserveContextTest.php
new file mode 100644
index 0000000..64e806f
--- /dev/null
+++ b/tests/Feature/AdminPlatformOrderIndexQuickFiltersRefundedAndPartiallyRefundedShouldPreserveContextTest.php
@@ -0,0 +1,74 @@
+<?php
+
+namespace Tests\Feature;
+
+use Illuminate\Foundation\Testing\RefreshDatabase;
+use Tests\TestCase;
+
+class AdminPlatformOrderIndexQuickFiltersRefundedAndPartiallyRefundedShouldPreserveContextTest extends TestCase
+{
+    use RefreshDatabase;
+
+    protected function loginAsPlatformAdmin(): void
+    {
+        $this->seed();
+
+        $this->post('/admin/login', [
+            'email' => 'platform.admin@demo.local',
+            'password' => 'Platform@123456',
+        ])->assertRedirect('/admin');
+    }
+
+    public function test_refunded_and_partially_refunded_quick_filters_should_preserve_context_and_clear_toggles(): void
+    {
+        $this->loginAsPlatformAdmin();
+
+        $res = $this->get('/admin/platform-orders?merchant_id=1'
+            . '&created_from=2026-03-01&created_to=2026-03-18'
+            . '&page=2'
+            . '&bmpa_failed_only=1&bmpa_error_keyword=timeout&fail_only=1'
+            . '&back=/admin'
+        );
+        $res->assertOk();
+
+        $html = (string) $res->getContent();
+
+        $cases = [
+            [
+                'role' => 'po-quickfilter-partially-refunded',
+                'expect' => ['payment_status' => 'partially_refunded'],
+            ],
+            [
+                'role' => 'po-quickfilter-refunded',
+                'expect' => ['payment_status' => 'refunded'],
+            ],
+        ];
+
+        foreach ($cases as $c) {
+            $role = (string) ($c['role'] ?? '');
+            $this->assertNotSame('', $role);
+
+            $re = '/<a[^>]*data-role="' . preg_quote($role, '/') . '"[^>]*href="([^"]+)"/u';
+            $this->assertMatchesRegularExpression($re, $html);
+            preg_match($re, $html, $m);
+
+            $href = html_entity_decode($m[1] ?? '');
+            $query = parse_url($href, PHP_URL_QUERY) ?: '';
+            parse_str($query, $q);
+
+            foreach (($c['expect'] ?? []) as $k => $v) {
+                $this->assertSame((string) $v, (string) ($q[$k] ?? ''), $role . ' missing expected ' . $k);
+            }
+
+            $this->assertSame('1', (string) ($q['merchant_id'] ?? ''));
+            $this->assertSame('2026-03-01', (string) ($q['created_from'] ?? ''));
+            $this->assertSame('2026-03-18', (string) ($q['created_to'] ?? ''));
+            $this->assertSame('/admin', (string) ($q['back'] ?? ''));
+
+            $this->assertArrayNotHasKey('page', $q);
+            $this->assertArrayNotHasKey('bmpa_failed_only', $q);
+            $this->assertArrayNotHasKey('bmpa_error_keyword', $q);
+            $this->assertArrayNotHasKey('fail_only', $q);
+        }
+    }
+}