I sent my headphones to Germany for repair in September. It is now January and I still have not received them back. They have sent the headphones without my flat number on them three times leading to non-delivery. They then sit in a UPS warehouse for weeks as Sennheiser wash their hands of it, and are returned to germany. There is no customer service and it is utterly laughable that they have made this mistake continually. it is almost impossible to contact them. I consider this theft and negligence.
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