Smarttag2 does not ring phone on double depress of smarttag2

[DDC37]

Bought two smarttag2 for myself and wife and can get neither of them to ring the phone when depressing smarttag2 twice. I am able to ring the smarttag2 devices from my phone however.

I have followed the troubleshooting advice on Samsung US website in respect to this - samsung.com/us/support/troubleshooting/TSG01211466/ 

but when the guide (point 4) refers to "Turn on Let tag find your device" - I cannot find this anywhere in the SmartThings App.

[Neo001]

In SmartTag2 settings, toggle on the option Find phone or tablet.

[DDC37]

Thanks for your reply. But I already have the "Find phone or tablet toggled ON". So my issue is something else