No notification sound

Hello all,To received sound from my notifications, (doorbell and motion) I have to turn the bluetooth on my phone off then on again then hey presto it works again.I'm having to do this every day and if I forget I miss peope at my door.Ring customer services have been through all the troubleshooting and say it's my phone at fault.I have an Samsung Android phone, but Samsung say the fault lies with Ring.Stuck in the middle with no permanent solution.Any advice welcome.Thanks