I know it can get you in trouble but things like this, a gym membership, your NYT subscription... anything that's harder to cancel than commence should let you reverse the charge without penalty.
Asymmetric enrollment systems need to fucking die. If I can subscribe online but need to call some understaffed hotline that's been instructed to try everything to keep me from canceling between the hours of 3:23 and 3:24 AM local time then fuck you, fuck you with a rusty dildo.