Нужна помощь с возвратом средств с аккаунта банка N26

Редко и мало пользовался немецким банком N26, зарегистрировался через свой Австрийский вид на жительство, спустя где-то месяц попросили предоставить австрийский налоговый номер. У меня его нет, письмо я проигнорировал, через некоторое время аккаунт заблокировали, писал письма с просьбой вернуть остаток суммы (чуть больше 800 евро) на мой счет в австрийском банке, ничего не отправляют, пишут стандартные отписки. Может я что-то делаю не так, помогите разобраться и вернуть деньги. Оплата за результат. 

Оригинал их письма:

Dear PETRO KALASHNIKOV,

To ensure our customers’ privacy and account safety, we are obligated to run routine checks on accounts and transactions. 

As part of these checks, we have identified irregularities that require us to terminate your N26 account pursuant to the Termination Clause of the Terms and Conditions of your N26 account on an extraordinary basis and without prior notice. 

This termination is effective immediately. Usage of your N26 account, app, and card is no longer possible. 

It is currently not possible to withdraw the remaining balance on your N26 account. Please send us proof of the origin of the funds through appropriate receipts. We will then assess whether a payout of the remaining balance is possible. This information may be emailed as a scan or photo. 

If you would like to continue correspondence via email, we’ll need your express consent. Therefore, please reply directly to this email with the above information within the next 14 days and include the following statement: 

"I authorize N26 Bank to email me my personal data". 

Please note that you can revoke your consent to the transmission of personal data by email at any time. In this case, we will only communicate by post. It’s important to note that the transmission of your data by post is usually more secure. Please contact us for more information. 

Thank you for your understanding. 

One last thing—you’ll need to request your N26 data or your Statement of Fees information. You can request this for up to six months after your account closure, but we recommend doing it as soon as possible. 

Kind regards,

Your N26 Team