If u upgraded to new free basic internet plan or bought a new sim card then u r 100% not qualified to subscribe to 365 validity...

my trick to extend validity without topping up - buy 1 month data and ur expiry date will extend until 1 day before your data expiry =D
but i always finish the data before expiry and buy new 1 month data again so i dunno if the trick works if u dun finish the quota