Had an issue with Bluetooth not working Terma MOA Blue - Bluetooth Electrical Radiator Heating. This was replaced after providing (practical) evidence that it was not working, which I was happy to provide.
Although the unit was faulty, these things happen, but a measure of a good company is correcting issue like this so hence my 5 star rating. Also contact with their customer service was quick, knowledgeable/understanding & responsive.