Why is Microsoft charging me Gold once more after solely 2.5 months once I purchased 3 month gold at present?

Right here’s the issue. I used to be recreation sharing with my pals account for some time and I used to be utilizing the Gold on his account and wasn’t charged for Gold, then he determined to change the sport share from me to a different buddy which we each agreed on. After this I didn’t have Gold anymore since he switched it off and I simply performed free-to-play video games after that. I received uninterested in it and purchased 3 month Gold once more at present for myself but it surely says my Gold runs out on October 25, solely 77 whole days and nearly 2 weeks earlier than it’s supposedly speculated to cancel. Did I get a glitch? Manipulative advertising and marketing? Am I simply not seeing it? Or another unwritten rule? Thanks on your time.