public function updateEFTBankAccount( CustomerVault\Profile $profile, CustomerVault\EFTBankaccounts $bankDetails )
    {
        $profile->setRequiredFields(array('id'));
		$profile->checkRequiredFields();
        $bankDetails->setRequiredFields(array(
            'transitNumber',
            'institutionId',
            'accountHolderName',
            'billingAddressId'
        ));
        $bankDetails->checkRequiredFields();
        $bankDetails->setOptionalFields(array(
            'nickName',
            'merchantRefNum',
            'accountNumber'
        ));
        $request = new Request(array(
            'method' => Request::PUT,
            'uri' => $this->prepareURI("/profiles/" . $profile->id . "/eftbankaccounts/" . $bankDetails->id),
            'body' => $bankDetails
        ));
        $response = $this->client->processRequest($request);
        return new CustomerVault\EFTBankaccounts($response);
    }