Ich würde auch telefonisch oder per Mail reklamieren. Der Versender wird doch kein Interesse daran haben, die Blätter für 2016 zurückzubekommen.
“There are many ways you can establish your own path,” he said, sounding very much like the teacher he is. “The reason I love my catch phrase, ‘Make it work,’ is because it is not just about what is happening in the workroom, it is about life. Taking the existing conditions, the things we have available to us, and rallying them to ascend to a place of success.” (Tim Gunn)