diff --git a/app/controllers/api/projects.php b/app/controllers/api/projects.php
index af588fffc4..cdb1575d76 100644
--- a/app/controllers/api/projects.php
+++ b/app/controllers/api/projects.php
@@ -876,6 +876,14 @@ App::patch('/v1/projects/:projectId/auth/mock-numbers')
     ->inject('dbForConsole')
     ->action(function (string $projectId, array $numbers, Response $response, Database $dbForConsole) {
 
+        $uniqueNumbers = [];
+        foreach ($numbers as $number) {
+            if (isset($uniqueNumbers[$number['phone']])) {
+                throw new Exception(Exception::GENERAL_BAD_REQUEST, 'Duplicate phone numbers are not allowed.');
+            }
+            $uniqueNumbers[$number['phone']] = $number['otp'];
+        }
+
         $project = $dbForConsole->getDocument('projects', $projectId);
 
         if ($project->isEmpty()) {
diff --git a/src/Appwrite/Auth/Validator/MockNumber.php b/src/Appwrite/Auth/Validator/MockNumber.php
index 2c1c81f863..ac5ba89fc5 100644
--- a/src/Appwrite/Auth/Validator/MockNumber.php
+++ b/src/Appwrite/Auth/Validator/MockNumber.php
@@ -46,9 +46,9 @@ class MockNumber extends Validator
             return false;
         }
 
-        $otp = new Text(6, 6);
+        $otp = new Text(6, 6, Text::NUMBERS);
         if (!$otp->isValid($value['otp'])) {
-            $this->message = 'OTP must be a valid string and exactly 6 characters.';
+            $this->message = 'Invalid OTP. Please make sure the OTP is a 6 digit number';
             return false;
         }
 
diff --git a/tests/e2e/Services/Projects/ProjectsConsoleClientTest.php b/tests/e2e/Services/Projects/ProjectsConsoleClientTest.php
index 753322f168..dd0c8420d5 100644
--- a/tests/e2e/Services/Projects/ProjectsConsoleClientTest.php
+++ b/tests/e2e/Services/Projects/ProjectsConsoleClientTest.php
@@ -1592,7 +1592,7 @@ class ProjectsConsoleClientTest extends Scope
             ]
         ]);
         $this->assertEquals(400, $response['headers']['status-code']);
-        $this->assertEquals('Invalid `numbers` param: Value must a valid array no longer than 10 items and OTP must be a valid string and exactly 6 characters.', $response['body']['message']);
+        $this->assertEquals('Invalid `numbers` param: Value must a valid array no longer than 10 items and Invalid OTP. Please make sure the OTP is a 6 digit number', $response['body']['message']);
 
         /** Trying to pass an OTP shorter than 6 characters*/
         $response = $this->client->call(Client::METHOD_PATCH, '/projects/' . $id . '/auth/mock-numbers', array_merge([
@@ -1607,7 +1607,22 @@ class ProjectsConsoleClientTest extends Scope
             ]
         ]);
         $this->assertEquals(400, $response['headers']['status-code']);
-        $this->assertEquals('Invalid `numbers` param: Value must a valid array no longer than 10 items and OTP must be a valid string and exactly 6 characters.', $response['body']['message']);
+        $this->assertEquals('Invalid `numbers` param: Value must a valid array no longer than 10 items and Invalid OTP. Please make sure the OTP is a 6 digit number', $response['body']['message']);
+
+        /** Trying to pass an OTP with non numeric characters */
+        $response = $this->client->call(Client::METHOD_PATCH, '/projects/' . $id . '/auth/mock-numbers', array_merge([
+            'content-type' => 'application/json',
+            'x-appwrite-project' => $this->getProject()['$id'],
+        ], $this->getHeaders()), [
+            'numbers' => [
+                [
+                    'phone' => '+1655513432',
+                    'otp' => '123re2'
+                ]
+            ]
+        ]);
+        $this->assertEquals(400, $response['headers']['status-code']);
+        $this->assertEquals('Invalid `numbers` param: Value must a valid array no longer than 10 items and Invalid OTP. Please make sure the OTP is a 6 digit number', $response['body']['message']);
 
         /** Trying to pass an invalid phone number  */
         $response = $this->client->call(Client::METHOD_PATCH, '/projects/' . $id . '/auth/mock-numbers', array_merge([
@@ -1639,6 +1654,25 @@ class ProjectsConsoleClientTest extends Scope
         $this->assertEquals(400, $response['headers']['status-code']);
         $this->assertEquals('Invalid `numbers` param: Value must a valid array no longer than 10 items and Phone number must start with a \'+\' can have a maximum of fifteen digits.', $response['body']['message']);
 
+        /** Trying to pass duplicate numbers  */
+        $response = $this->client->call(Client::METHOD_PATCH, '/projects/' . $id . '/auth/mock-numbers', array_merge([
+            'content-type' => 'application/json',
+            'x-appwrite-project' => $this->getProject()['$id'],
+        ], $this->getHeaders()), [
+            'numbers' => [
+                [
+                    'phone' => '+1655513432',
+                    'otp' => '123456'
+                ],
+                [
+                    'phone' => '+1655513432',
+                    'otp' => '123456'
+                ]
+            ]
+        ]);
+        $this->assertEquals(400, $response['headers']['status-code']);
+        $this->assertEquals('Duplicate phone numbers are not allowed.', $response['body']['message']);
+
         $numbers = [];
         for ($i = 0; $i < 11; $i++) {
             $numbers[] = [