Regarding Trade canary Software USA it is a subscription only and you can cancel at any time (the time remaining just expires) (you have already paid for the time of subscription so if you cancel the time simply expires and you are disconnected from access to the software at the end of the time of 18 months initially and 12 months if renewed .

Regarding the online Basic course , once purchased you have lifetime access 

to the on line course  and this is what you have purchased there is no refunds 

as is not a subscription  but a purchase on the educational online course
which includes access to the  intellectual property and course content .