I can neither view my invoice nor query the debt status. Today I received a letter stating that I have an outstanding debt of 28.82 Euros. I sent the amount. I just got an email saying "Ihr Konto weist einen Rückstand auf." he is writing. He's talking about the overdue amount of 46.66 euros. How can I check them? After logging into the your system, whatever I want to do, it gives an error. I could only verify my e-mail address in a month. I wanted to order a new laptop, I tried for 10 days and finally gave up.

Please, can you help me ?