diff --git a/lib/Digitick/Sepa/DomBuilder/BaseDomBuilder.php b/lib/Digitick/Sepa/DomBuilder/BaseDomBuilder.php
index 02af781..1540420 100644
--- a/lib/Digitick/Sepa/DomBuilder/BaseDomBuilder.php
+++ b/lib/Digitick/Sepa/DomBuilder/BaseDomBuilder.php
@@ -138,8 +138,17 @@ public function visitGroupHeader(GroupHeader $groupHeader)
     protected function getFinancialInstitutionElement($bic)
     {
         $finInstitution = $this->createElement('FinInstnId');
-        $finInstitution->appendChild($this->createElement('BIC', $bic));
-
+        
+        if (strtoupper($bic)==='NOTPROVIDED') {
+            $other = $this->createElement ( 'Othr' );
+            $id = $this->createElement ( 'Id', 'NOTPROVIDED' );
+            $other->appendChild ( $id );
+            $finInstitution->appendChild ( $other );
+        }
+        else {
+            $finInstitution->appendChild($this->createElement('BIC', $bic));
+        }
+        
         return $finInstitution;
     }
 
diff --git a/lib/Digitick/Sepa/DomBuilder/CustomerDirectDebitTransferDomBuilder.php b/lib/Digitick/Sepa/DomBuilder/CustomerDirectDebitTransferDomBuilder.php
index 95b51f0..f078fc3 100644
--- a/lib/Digitick/Sepa/DomBuilder/CustomerDirectDebitTransferDomBuilder.php
+++ b/lib/Digitick/Sepa/DomBuilder/CustomerDirectDebitTransferDomBuilder.php
@@ -130,6 +130,9 @@ public function visitTransferInformation(TransferInformationInterface $transacti
         $directDebitTransactionInformation = $this->createElement('DrctDbtTxInf');
 
         $paymentId = $this->createElement('PmtId');
+        if ($transactionInformation->getInstructionId()) {
+            $paymentId->appendChild($this->createElement('InstrId', $transactionInformation->getInstructionId()));
+        }
         $paymentId->appendChild(
             $this->createElement('EndToEndId', $transactionInformation->getEndToEndIdentification())
         );
diff --git a/lib/Digitick/Sepa/TransferFile/Facade/CustomerDirectDebitFacade.php b/lib/Digitick/Sepa/TransferFile/Facade/CustomerDirectDebitFacade.php
index 39ee1c4..8555484 100644
--- a/lib/Digitick/Sepa/TransferFile/Facade/CustomerDirectDebitFacade.php
+++ b/lib/Digitick/Sepa/TransferFile/Facade/CustomerDirectDebitFacade.php
@@ -108,6 +108,9 @@ public function addTransfer($paymentName, array $transferInformation)
             $transfer->setMandateSignDate(new \DateTime($transferInformation['debtorMandateSignDate']));
         }
         $transfer->setRemittanceInformation($transferInformation['remittanceInformation']);
+        if (isset($transferInformation['InstrId'])) {
+            $transfer->setInstructionId($transferInformation['InstrId']);
+        }
         if (isset($transferInformation['endToEndId'])) {
             $transfer->setEndToEndIdentification($transferInformation['endToEndId']);
         } else {