Unfortunate experience
I purchased an Xbox Live Gold 12 months. I wasn't aware that, if you own a Game Pass Ultimate, this card would automatically convert to 4 months Game Pass Ultimate. Unfortunately this information is not clear displayed in the website. The information was actually displayed when I placed the Card in the cart, but the it was displayed at the bottom of the page so I didn't read that while I was purchasing the card. Also the procedure for redeeming the code is not clear, I found two procedures on the website but only one works (the one with VPN installation and switch to Brazilian servers). The customer service has been really fast to answer and very polite, so no complaints there. Next time I will buy the card directly from Microsoft