Answered question
My phone plan is just text, but I have a 250mb upgrade. If I don't use it this month, will it rollover to the next month?
Yes - it will rollover for 2 billing cycles. So roughly 90 days is the max depending on the length of each month in the cycles.
Other answers
Yes it will roll over with an expiration of 60 days after that it expires
It will rollover for two renewal cycles. After that, it's gone
There is a graph with the expiry dates of your mobile data on your Fizz account.
Oh my bad, Elizabeth was asking about upgrade rollovers, which is the same as regular plan data rollover (2 cycles).
For some reason, I was thinking rollover for gifted data (which is 1 cycle).
@Fizzy: Not true, they will last for 90 days, therefore, the rollover is for ~2 billing cycles
One way to think of it is: allocated data has a 90 day validity (whether from an upgrade, or you monthly allocation).
Yes, it now rolls over. It's great to know that you have lots of extra data when you need it.