Pathetic service.

I have ordered a windscreen from Mercedes Benz in September and still waiting. Not a 1996, 2006, but 2014 model. I have taken this up with Mercedes Benz head office, I was told the glass would arrive in Germany, not South Africa about 23rd November. When I followed up again, they don't call me, I get told I must tell my customer he must wait there is nothing they can do. I now received a call from their "customer service" telling me they can only give me answers in January because it's the merry, merry season. Beyond disgusted.