I can not cancel my subscription. HELP ME !!!

Hello, in my services and subscriptions tab is saying that I have an xbox live gold subscription, I want to cancel it because I hired the 12 month plan and the 12 months are ending, I do not want to have a recurring charge because I do not want to continue with the subscription . I have already followed microsoft support and in the payments and collections is not giving me the option to cancel, I wanted to know why, and a position and help from you to cancel the recurring payment and remove the information from my card