Extremely bad!!! Ever since I got your device, there was no way of me communicating with you but amounts not agreed upon were deducted from my account

Extremely bad!!! Ever since I got your device, there was no way of me communicating with you but amounts not agreed upon were deducted from my account. When I reversed such transactions l was threatened with court proceedings. Mind you, up to this date l haven't received my login details. If it wasn't for the guy who fitted your device, l wouldn't be having your app. I am so disappointed at your service.