Unfortunately, you'll have to wait after 01/12/2019 to make any change to your rewards?
I reached Level 3 and unlocked a new upgrade slot. When trying to apply an upgrade to that slot (500mb data), I get the message "Unfortunately, you'll have to wait after 01/12/2019 to make any change to your rewards.". And that upgrade slot remains empty indicating that the upgrade didn't go through (I was expecting it to say pending activation).
Sure I could wait until 01/12/2019 but then the upgrade won't actually be effective before 01/01/2020 when the following billing cycle begins.
Has anyone had this issue? How do you resolve it and apply the upgrade so that it goes into effect for the very next cycle?