March
First off, I just talked with your rep Simran, who reversed a Fido Roam fee I had been charged on a day I didn't use Fido. I was using a Mexican SIM card. Fido Roam cost $15 a day in Mexico. The SIM card gave me Canadian, U.S., and Mexican call and all the data I needed for one month. It cost about $20 in Canadian dollars. Why would I--or would anyone--use Fido Roam, especially in Mexico.
March
Hello @erains,
The Fido Roam is meant for people who are traveling and want to use their Canadian number so that people in Canada can stay in contact with them and as a bonus, they can use their device in the country they travel to just as if they were in Canada.
You can always opt out of the Fido Roam or put a roaming block on your line by contacting customer service.