My observations from past expiring offers is thet tend to stay up until mid-morning the day after the expiry. So I would expect the offer to be available all day Monday and then removed sometime Tuesday morning. Monday is a holiday in most of Canada ...
I can’t comment on the rewards, but as someone who recently changed from a 4g to 5g plan, the only difference I’ve observed is faster speeds on 5g. I have an older iPhone 8+ which is not 5g enabled. But I do get close to 170 mbps download speeds now ...
Looks like T-Mobile may still have 2g in the USA until April 2024 which would allow phone calls without VoLte. Your data would run on their 4g network. Just a guess. Interesting if that's what's happening. Link here: T-Mobile Networks
