Not sure if this can help you but my wife's A22 NFC wasnt showing. I dragged the screen down as one would, right top corner 3 dots, edit buttons, just drag the NFC down in your menu (it wont work if you dont drag it)
Sir,, few day ago I used NFC in this model, I used market and pharmacy , last week I updated my mobile then suddenly it's not working,, I bought in Saudi Arabia,, in my settings it's still available,,and new model online searching for this model but now not available in new phone,, but my phone still sawing and not working
In my case I had to swipe right in the screen where i can toggle on or off the Connections (like WLan, Bluetooth etc.) and then push the +-Button to add the NFC-Button.
I hope this info helps.