Hi all. First of all, this method works great if you are botting using your own computer but you can also use this with a VPS too.
Firstly buy a MIFI Router/Dongle, here is an example of one:
Next, you need a sim card to go into it. You will either need an unlimited plan, or a special plan such as the network provider VOXI, who include unlimited social media with every package they offer! (Including the £10 option.)
Here are two offers which are fairly cheap and offer lots of data:
https://www.voxi.co.uk/plans
http://www.three.co.uk/Store/SIM/Plans_for_phones
Next, you want to connect your laptop or computer you are running your software on and connect to the router, and thats that.
If you are using a VPS, you can create a proxy from this MIFI router/dongle by using a raspberry pi, tutorial here: Using your home IP as a residential proxy with a Raspbery
Or, you can use the program CCProxy, which you can get here for free:
https://www.youngzsoft.net/ccproxy/
For other countries, its a similar if not the same process, however the network providers will just be different.