I’m not being funny but this is something you can sort yourself. It’s mentioned in the manual and (assuming you have a TFT) it’s a piece of cake to re-enable the alarm tone (back in the day with the old DWA6 alarm it required pressing buttons on a fob and messing around turning the ignition on and off). It’s also highly likely that the TFT upgrade resets the alarm functionality to the default (or they may have turned it off during servicing). Either way, it’s not like they broke your bike, is it?