Warning, long post. TL;DR: I just changed plans and had it started immediately.
Thanks to everyone who's offered advice and direction regarding this matter. However, as opposed to trying them to solve this problem, I more or less side-stepped the whole thing.
As I alluded to in the original post, my plan was soon to renew, but not for what it used to be. I was one of the legacy plan hold-outs from 2016 with the $120/90 day plans for 12 GB and the unlimited Canada wide calls and international texts (it was working for me and I saw no reason to make a change - nor am I often a fan of it). However, on Friday, when it was set to renew, though the plan details more or less looked the same (except for conflictually showing both 12 GB and 60 GB caps) the plan price was now set at $245/90 day and I was given zero warning of that change. I only happened to see it when I checked my account (which I rarely did since there seemed very little reason to do so when everything was working smoothly) because of my service interruption which was the reason for making this post in the first place.
So, very quickly, my focus shifted from trying to get back my presumably lost promo data so I could continue to have data service until the renewal, and instead on how to avoid paying such exorbitant fees for the (same?) service going forward. And instead of trying to figure out things here or with a chatbot or service agent (I can sometimes find these kinds of interactions taxing and/or time consuming), I just bit the bullet and looked at the other plan options they were offering me and decided to make the change in plan and have it's activation be immediate rather than wait for the renewal.
My new plan is now $30/month, unlimited Canada wide calls, international texts and 20 GB of 4G data (since roughly 4 GB/month used to be more-or-less sufficient for my needs, I certainly hope I'll never get close to maxing that out). Thankfully, there hasn't seemed to have been any issues so far on my end, as I see in the threads others have had when trying to make a switch in plan.
And, even though my bonus data has vanished without a trace - even just to show that it's has been all used up, and the plan change disclaimers warn that old rewards may disappear entirely or be no longer applicable, my various international calling minute pools from the same said old promos appear to have crossed over without issue (which is great, because I do occasionally make calls to American numbers).
Anyway, again I thank you all for your help, and I make this follow-up just so this thread isn't left unresolved, even though technically a solution for the original problem wasn't found, or, more accurately, tried since it had become of much lesser importance in my eyes.
I appreciate all of you for taking your valuable time to read and to respond to the comments in this thread.
Blessings,
Neives
