Hi ashaa
We're sorry to hear you had trouble accessing the curling matches. I'm not sure if there was a last minute change to the channel or schedule, but you can report the error using this form https://www.shaw.ca/secure/support/television/guide-errors/form.aspx
Sportsnet does occasionally change which channel a program is being broadcast on based on other factors, so I'd recommend checking their website for the most accurate information. We usually need at least 48 to 72 hours notice to update guide listings, so if they change something on the same day it won't be reflected in the guide. You can find the listings for all Sportsnet channels here: https://www.sportsnet.ca/schedule/