diff --git a/app/Services/PostcodeService.php b/app/Services/PostcodeService.php
index 9489e98..67b8ae3 100644
--- a/app/Services/PostcodeService.php
+++ b/app/Services/PostcodeService.php
@@ -122,6 +122,10 @@ class PostcodeService
 
             $data = $response->json('result');
 
+            if (! is_array($data) || ! isset($data['postcode'], $data['latitude'], $data['longitude'])) {
+                return null;
+            }
+
             $result = new LocationResult(
                 query: $postcode,
                 displayName: $data['postcode'],
@@ -129,14 +133,21 @@ class PostcodeService
                 lng: $data['longitude'],
             );
 
-            Postcode::updateOrCreate(
-                ['postcode' => $normalised],
-                [
-                    'outcode' => substr($normalised, 0, strlen($normalised) - 3),
-                    'lat' => $data['latitude'],
-                    'lng' => $data['longitude'],
-                ],
-            );
+            try {
+                Postcode::updateOrCreate(
+                    ['postcode' => $normalised],
+                    [
+                        'outcode' => substr($normalised, 0, strlen($normalised) - 3),
+                        'lat' => $data['latitude'],
+                        'lng' => $data['longitude'],
+                    ],
+                );
+            } catch (Throwable $e) {
+                Log::warning('PostcodeService: failed to persist postcode after HTTP fallback', [
+                    'postcode' => $normalised,
+                    'error' => $e->getMessage(),
+                ]);
+            }
 
             return $result;
         } catch (Throwable $e) {
@@ -163,6 +174,10 @@ class PostcodeService
 
             $data = $response->json('result');
 
+            if (! is_array($data) || ! isset($data['outcode'], $data['latitude'], $data['longitude'])) {
+                return null;
+            }
+
             $result = new LocationResult(
                 query: $outcode,
                 displayName: $data['outcode'],
@@ -170,13 +185,20 @@ class PostcodeService
                 lng: $data['longitude'],
             );
 
-            Outcode::updateOrCreate(
-                ['outcode' => $normalised],
-                [
-                    'lat' => $data['latitude'],
-                    'lng' => $data['longitude'],
-                ],
-            );
+            try {
+                Outcode::updateOrCreate(
+                    ['outcode' => $normalised],
+                    [
+                        'lat' => $data['latitude'],
+                        'lng' => $data['longitude'],
+                    ],
+                );
+            } catch (Throwable $e) {
+                Log::warning('PostcodeService: failed to persist outcode after HTTP fallback', [
+                    'outcode' => $normalised,
+                    'error' => $e->getMessage(),
+                ]);
+            }
 
             return $result;
         } catch (Throwable $e) {