Mobile data limit stuck on 100GB

[Jawwal]

Hello fellas, for some reason i cannot seem to change the mobile data limit, what ever number i input, it resets to 102400 MB
I need to reduce it to 2 GB = 2000 MB :-\

 

[B. Diddy]

Welcome to Android Central! Which device?

 

[Jawwal]

Thanks, Galaxy Note 2

 

[B. Diddy]

See what happens if you wipe the cache partition: https://support.t-mobile.com/docs/DOC-11018