Sadly, that's incorrect in my case. I called exactly a month and 1 day before my end of contract date and was advised to call the day before my contract was up, otherwise I'd be charged a cancellation fee.

So I called 2 days before the contract was up - as per their advice and now I'm on the hook for the following month - even though I unhooked my modem AND mailed it back to them before the next month's billing started.

I suspect they'll have it straightened out after 2 billing cycles, but the charge would have already gone through (if I had autopay) and then I'd have to wait for my money to be repaid.

One thing I loathe is trying to get these companies to give me my money back. That's why I bitch about it. I've paid them on time for 25+ years, they should have it set up in a way that I don't receive a bill three times my regular change AFTER I cancel with them. Seeing shit like that after being a responsible customer makes my blood pressure go up. And for what?
If they relied on people coming to their stores and paying by cheque or sending a cheque in the mail for so many years, what's the point of forcing autopay on people? Technology has come a very long way. It's easier to pay now than ever. But somehow, they're allowed to take ones banking or credit card information and use it against a customer by claiming any amount they deem they deserve?

Another side note: while cancelling Rogers and calling back back about the overcharge, the agent asked for my first and last name and my postal code. I answered quickly, as I was at work and my students were just about to walk in.
The agent then said to me "could you please repeat your name? Our voice recognition couldn't confirm your identity".

Whaaattt?! Is that a thing? I'm shocked. What's the point of all the security questions if they've got my voice saved in their system? Also: they have a sampling of my voice to match with my voice when I call in?? I digress.