HOW DO I CANCEL MY 360 XBOX MEMBERSHIP CHARGE?

You can cancel a subscription at http://account.microsoft.com

I'm assuming you mean your Gold subscription. If so, then sign in on account.microsoft.com, goto services and subscriptions, your subsription should then show, select manage, and then cancel or turn off auto renew.

You can cancel your membership and get refunded for the unused period. for more info:

http://support.xbox.com/en-US/billing/xbox-subscriptions/how-to-cancel-xbox-subscription

I already did all the steps, it tells me that my subscription will end on 02/05/2017 (this is my exact expiration date), but the additional Xbox Live membership (which charged me the system on 04/22/2017) I do not know if It has been canceled.

How do I cancel a Gold Family Pack membership?

For information about how to cancel your membership, see
Cancel your Xbox LIVE Gold Membership.

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Once the membership has been cancelled or run out you can go to a regular Gold membership.

I got the same issue it won’t let me cancel my membership and it says on my Xbox app on my computer auto Renews on the 30. When it hits the 30 th will i get charged I just wanna cancel my membership.