Fantastic customer service from start to finish. I had so many questions and nothing was too much trouble, even the owner of the company took his time to face time me (on a Sunday too). Our gorgeous German Shepherd has had trouble coming to terms with the arrival of my son's cat in the house! Whenever she sees the cat at the window from my son's room she will go crazy barking, and drives us crazy. We allow her outside in the day - and again if the cat appeared in the back window she would jump up and bark so loudly - we were so worry that the neighbours would complain. One day she jumped up barking at the cat and actually smashed the window - fortunately we were home but we could have had two very injured pets on our hands. We knew we had to do something and so a friend had recommended the dog collar they had got from the Dog Line. My 14 yo daughter was hesitant about using this on the dog, but the staff even spoke to her and assured her and she was happy about it. They really were so patient with us. More importantly - IT WORKED! Our German Shepherd is no longer barking crazily every time Puss in Boots appears and we don't have to worry about our poor neighbours and more importantly we can allow Sandy to play in the back garden without worrying about windows being smashed and not having to barricade the windows! Thank you so much everyone at the DogLine and Colin for sharing your valuable time on a Sunday to facetime us, and to assure my daughter that we were acting in EVERYONE'S best interest. I highly recommend anyone thinking of a dog collar to speak to the Dogline who will talk you through which product is most suitable for you. Best $$$ have every spent on a product. THANK YOU TO EVERYONE.