Public Moble should upgrade all recently subscribed $34 5g 20gb accounts to 40gb behind the scene so we don't have to change it online at the same day. If you promote the 20gb as Black Friday sale earlier and then raise it to 40gb today, you should honour all recently subscribed clients as well.
most carriers usually do not just upgrade plan feature automatically. Also, it looks like the current $34 plans are all promo plans only for limited time, So, just schedule a plan change to the one you like
