Five boxes later (yes five) and my noise issue has not been resolved. I have tried three current models which suffered from the same noise and two previous models which sadly did not work.
I have decided to keep the first box as I have wasted so much time back and forth from the shop. I will move to Swiss Com next year as their boxes are much quieter.
Also, when I placed my order in September there was a promotion to recieve 40,000 Coop Supercard points. I am still waiting to recieve the points and again having to chase people. It seems that UPC cannot even honor their promotions.
The whole experience with UPC has been horrible.