Make a video the steps to reload and subscribe....Save this vix in the Old Lady's phone or spare phone...
Alternatively, seek help from neighbors to help the Old Lady reload & subscribe...
Remote access app could be too much for the Old Lady (or even us) but can
try-cuba-tengok-test if the Old Lady understands or not...
The most important part is to ensure the Old Lady knows how to login to the Hotlink app in case the app logout the account unexpectedly...
Finally, the best option is:
We can login to the app using the Old Lady's account at our phone, provided the Old Lady can forward the TAC to us (in the future)... Once all activities is done, don't logout and leave the app in our phone...so, before leaving the Old Lady house, ensure we have accessed the Old Lady's account at our phone...