Changed Battery now have service warning constantly.

[B7quattroGuy]

So over this lockdown I've not used the car much.  The dashcams have drained my battery on several occasions.  I've had it out and recharged it a few times.  Even swapping every couple of days with an older battery.   Today, I've put a brand new battery in.  The car is working fine, but I now have the service warning on my cluster telling me it needs servcing in 8400 miles or 336 days.  This warning will not go away.  Every time it shows it bongs.  

How can I stop it?  It normally will tell me this once when I start the car, it should go away and let me see the normal display.  But it just stays and bongs at me.  

 

Please,  Any suggestions.  

Thanks

[Prof Mat]

Perhaps buy a code reader with service reset tool from eBay - they are very useful - I have this one - https://www.ebay.co.uk/itm/For-VAG-VW-Audi-Skoda-Car-OBD2-Scanner-Code-Reader-Diagnostic-Tool-Reset-EPB-OIL/254657288114?epid=5031296760&hash=item3b4ac1d7b2:g:y2QAAOSwGCxf2MHr