diff --git a/app/Helpers/Bank/Nordigen/Nordigen.php b/app/Helpers/Bank/Nordigen/Nordigen.php
index 2cef264335c6..ae060d860c4b 100644
--- a/app/Helpers/Bank/Nordigen/Nordigen.php
+++ b/app/Helpers/Bank/Nordigen/Nordigen.php
@@ -52,12 +52,12 @@ class Nordigen
     }
 
     // requisition-section
-    public function createRequisition(string $redirect, string $initutionId, string $reference)
+    public function createRequisition(string $redirect, string $initutionId, string $reference, string $userLanguage)
     {
         if ($this->test_mode && $initutionId != $this->sandbox_institutionId)
             throw new \Exception('invalid institutionId while in test-mode');
 
-        return $this->client->requisition->createRequisition($redirect, $initutionId, null, $reference);
+        return $this->client->requisition->createRequisition($redirect, $initutionId, null, $reference, $userLanguage);
     }
 
     public function getRequisition(string $requisitionId)
diff --git a/app/Helpers/Bank/Nordigen/Transformer/TransactionTransformer.php b/app/Helpers/Bank/Nordigen/Transformer/TransactionTransformer.php
index 30e511d67aec..0850b7f59214 100644
--- a/app/Helpers/Bank/Nordigen/Transformer/TransactionTransformer.php
+++ b/app/Helpers/Bank/Nordigen/Transformer/TransactionTransformer.php
@@ -113,8 +113,8 @@ class TransactionTransformer implements BankRevenueInterface
             'transaction_id' => $transaction["transactionId"],
             'amount' => abs((int) $transaction["transactionAmount"]["amount"]),
             'currency_id' => $this->convertCurrency($transaction["transactionAmount"]["currency"]),
-            'category_id' => null, // nordigen has no categories
-            'category_type' => array_key_exists('additionalInformation', $transaction) ? $transaction["additionalInformation"] : null, // TODO: institution specific keys like: GUTSCHRIFT, ABSCHLUSS, MONATSABSCHLUSS etc
+            'category_id' => null,
+            'category_type' => array_key_exists('additionalInformation', $transaction) ? $transaction["additionalInformation"] : '',
             'date' => $transaction["bookingDate"],
             'description' => $description,
             'participant' => $participant,
diff --git a/app/Http/Controllers/Bank/NordigenController.php b/app/Http/Controllers/Bank/NordigenController.php
index 72292b5ff561..ce9e56a2d9f6 100644
--- a/app/Http/Controllers/Bank/NordigenController.php
+++ b/app/Http/Controllers/Bank/NordigenController.php
@@ -34,7 +34,8 @@ class NordigenController extends BaseController
 
         /** @var array $context */
         $context = $request->getTokenContent();
-        $lang = $data['lang'] ?? 'en';
+        $company = $request->getCompany();
+        $lang = $company->locale();
         $context["lang"] = $lang;
 
         if (!$context)
@@ -87,7 +88,7 @@ class NordigenController extends BaseController
 
         // redirect to requisition flow
         try {
-            $requisition = $nordigen->createRequisition(config('ninja.app_url') . '/nordigen/confirm', $data['institution_id'], $request->token);
+            $requisition = $nordigen->createRequisition(config('ninja.app_url') . '/nordigen/confirm', $data['institution_id'], $request->token, $lang);
         } catch (NordigenException $e) { // TODO: property_exists returns null in these cases... => why => therefore we just get unknown error everytime $responseBody is typeof GuzzleHttp\Psr7\Stream
             $responseBody = (string) $e->getResponse()->getBody();
 
@@ -135,12 +136,14 @@ class NordigenController extends BaseController
     public function confirm(ConfirmNordigenBankIntegrationRequest $request)
     {
         $data = $request->all();
-        
+        $company = $request->getCompany();
+        $account = $company->account;
+        $lang = $company->locale();
+
         /** @var array $context */
         $context = $request->getTokenContent();
         if (!array_key_exists('lang', $data) && $context['lang'] != 'en')
-            return redirect()->route('nordigen.confirm', array_merge(["lang" => $context['lang']], $request->query())); // redirect is required in order for the bank-ui to display everything properly
-        $lang = $data['lang'] ?? 'en';
+            return redirect()->route('nordigen.confirm', array_merge(["lang" => $context['lang']], $request->query()));
 
         if (!$context || $context["context"] != "nordigen" || !array_key_exists("requisitionId", $context))
             return view('bank.nordigen.handler', [
@@ -149,9 +152,6 @@ class NordigenController extends BaseController
                 "redirectUrl" => ($context && array_key_exists("redirect", $context) ? $context["redirect"] : config('ninja.app_url')) . "?action=nordigen_connect&status=failed&reason=ref-invalid",
             ]);
 
-        $company = $request->getCompany();
-        $account = $company->account;
-
         if (!(config('ninja.nordigen.secret_id') && config('ninja.nordigen.secret_key')))
             return view('bank.nordigen.handler', [
                 'lang' => $lang,