Door bell push doesn't respond a lot of times. Missed many parcels and people because of it.

Our Ring Doorbell Pro quite often does nothing. We have many visitors every week saying the same thing, "Pushed the bell nothing happened". The batteries are charged sufficiently. Even when they are fully charged it still does the same thing. I've uploaded a video of me pushing it today. As you will see despite a firm push it did not ring the first time, it took a second push. Sometimes it needs several pushes. We've missed several deliveries because of this, we can't hear people knocking. I've now had to put a note on the door, but I'd rather have a working doorbell. It used to work fine. Paul