Why don't I get 4G on my Nokia Lumia 930?

[Windows Central Question]

Nokia Lumia 930 4g mobile data

Hello,

Me and my brother, we both bought nokia lumia 930.
When i activate the mobile data on my phone, it starts with E, then it goes to H/H+.
I don't get 4G though.
However my brother who bought the same phone at the same time is able to get 4G.

I am thinking that it might be something in the settings but i am not able to find it.
Could someone give me any hints here please?

Thank you in advance,

Leandro