Hello, 

After cancelling my contract in August 2020, I kept receiving invoices to pay (I payed the first one thinking it was the final invoice, and then received more) with "Mahnkosten" until today, January 2021.

I have moved out of Germany and the new tenant of my apartment is kindly sharing the invoices if he receives anything but I do not understand these amounts, nor why I am getting "Mahnkosten" on top of them the first time I even receive them. I have already paid a big bill after cancelling my contract.

Thank you for the help.