Ring 2 battery op. Doorbell, under 3 years old, has stopped working completely?

My ring 2 doorbell stopped working a couple of weeks ago just after I changed the battery (official ring battery). No connection and not recognised. Tried all fault finding advice, still doesn't work and the main body behind the camera is heating up excessively. The heat is generating around the PCB area behind the camera, so I know it's not the battery. Need contact with ring to obtain replacement and communication with the company isn't great within the UK. Spent too much money on various ring items to link together and not very happy that this unit hasn't lasted very long. Any help getting this sorted would be much appreciated.