can't access 2G and can't unbundle network modes

If I go to settings > networks and connections > mobile networks>network modes there are only 2 options:

1) 4G & 3G
2) 4G & 3G & 2G

I want my blackberry to have the following options like in this image:

deviceguides.vodafone.ie/web/blackberry-z10/basic-use/network/select-network/

I am on mobilicity and "network selection mode" is set to automatic and it takes forever to choose 4G and when I am roaming it Chooses 3G but my phone won't work properly when it tomes on 3G properly.

My old blackberry9320 curve I could choose

2G
3G
2G & 3G

These are usually carrier dependent. With ATT we can't change at all.

I'm on Three UK and I can change between; 4G. 4G + 3G. 4G + 3G + 2G. 3G + 2G. I'm sure about 2G and 3G separately but Three UK doesn't even do 2G

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