Ambrane India — Stopped cutting off once I used it correctly

I used the Ambrane Aerosync Snap while travelling last week on train. It was charging, but after a while I realised it had stopped again. I saw the magnet was slightly off because I kept pulling the phone out of my jacket to check messages. I called customer support thinking the magnet is weak. They told me to keep it properly centred and avoid shifting it repeatedly while it’s charging wirelessly. After that, I started using it mostly when the phone is resting on my lap/desk and it works better.