I upgraded my Freeze 50/50 but my freeze is not m1 it's still m0.
You will get freeze M1 for free when it is unlocked upon reaching required rank.
What should I do so my Freeze to be m1?
I'm First Lieutenant but still my freeze is not getting m1.
Unfortunately, You can't get m1 if your rank allows you to buy m2.
Sorry, but you can't buy m1, your rank has crossed WO5 rank, it means you only have the option to buy m2.
Customer support service by UserEcho