I guess this is probably more microsofts problem than yours but i want my premium and maybe a few other things but when i add ac to the cart the cart doesnt work and when i just got to buy it, says something went wrong, i have several payment methods set up, idk

It's the same for me.

i tried in internet explorer too, same error

oh it seems to have worked just now!

https://puu.sh/FPvlz/f1c1a614fb.png i get its the first day but i want my premium

I cant buy either, I did one transaction. wanted to do another one and it said "NOPE LOL"

Not working for me either. I've tried a few times over the course of the day.

Same for me all day except now was able to buy 100ac and 20 and 120 star gems.... can't buy AC over a dollar