Default Huawei Honor 3C UMTS frequency

Hello,
I live in Holland where the UMTS frequencies are 900/2100 if i'm correct.
Now i have recently bought the Huawei Honor 3C (H30-T00 MT9572) and i found out that it works on 850/2100.

My data connection is not working (APN is correctly, Data connection is turned on, i have tried a factory reset and double checked the IMEI numbers).
I am using Vodafone NL, wich should have its data connection on 2100Mhz?

Why cant i connect to the 3G connection?
My 2G is working fine.

I am willing to try anything thats possible! (even buying a 3G atenna from another phone that might fit and work??)

Thanks,
SnooHD