If I remove my card info from iTunes will it cancel my subscriptions?

When I signed up for Netflix I signed up using the app using my phone I put my mom's card info and it saved it to my iTunes account. I want to remove the card from my iTunes account, but I don't know if it will cancel our Netflix subscription.

As far as I'm aware, if you have your Netflix and iTunes accounts linked together, then it will cancel all subscriptions.

If they aren't connected then no, I wouldn't think it would cancel everything.