Netgear Mobile App USSD

I'm using Netgear Nighthawk M1 MR1100 (Unlock Version) with Netgear mobile app for my work, home and travels. I really enjoy with this greatest device and this friendly app that's make me happy to use it everyday, however in some case such as when i travel to another country that their mobile service don't have mobile app for top up and check balance i need to take out sim card from my Netgear M1 put it in mobile phone for top up or check balance so it is something that really uncomfortable and i think it happened with another users too. i wish Netgear development team consider for add the USSD functionality to Netgear Mobile App that make it easy especially for using netgear device on travel.