tc electronic PolyTune 3 Tuner/Buffer

I bought a TC electronic polytune 3. It came with no access to the internal dip switches due to a manufacturing error. Thomann advised that they were all like that, not true, also advised that taking it apart wouldnt invalidate the warranty, also untrue as confirmed by the manufacturer. Only recourse was to send it back to the manufacturer under warranty, would not give a replacement, leaving me without a tuner. Unacceptable for Thomann to provide such bad customer service, and TC Electronic to provide such bad quality checking / manufacturing.