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and if you activate your card today (last day of promotion) you get double 4G data!
If you are planning to stay longer, the AT&T plans on amazon is cheaper https://www.amazon.ca/Prepaid-Card-Unlimited-Talk-Canada-Mexico/dp/B07MLZJBD6/
EDIT: clarify that you can activate the SIM today, but have the plan start later on.
thanks for the warning but I should be ok, the card I purchased works in Canada, the US, and Mexico.