I lived in Germany for just under 7 months. I am now back to the UK, but I would like to check if I am due a tax refund. I found information online about registering for ELSTER. So I did just that. I got a link by email to activate my account. When I click on the link it says that from the information introduced, I am living abroad. It then asks me to contact my local ELSTER contact, and there is a hyperlink. Once I click on that I get an error message. Any advice?