Didn't you check the NETWORK COVERAGE page for your postcode before switching.?

Hello yes 4g perfect in my area 

Unfortunately @Myles9, the online coverage checkers show a prediction of coverage at any given location, based on computer models. The real world coverage could be better or worse than predicted. 

Alternatively, there might be a network fault/issue at your location, affecting the network data services.

Check online at https://www.three.co.uk/support/network-and-coverage/coverage.

Hello it’s still saying excellent coverage, it says I have 4g but when I do a scan it uses 3g

The coverage checker results are from a computer model, not someone using a test instrument at any given location to check the actual signal strength, sorry.

For actual real-world coverage try:

• https://mastdata.com

• https://www.nperf.com/en/map/GB/-/2012851.Three-Mobile/signal?ll=20&lg=0&zoom=3

I have tryed everything, reset my internet settings for IDmobile settings and I’m still getting 3G, there is coverage in my area I don’t live in a cave lol, something is not right, who can I actually talk to to solve this 

Try speaking online to the iD support team, by using their online Live Chat service. 

https://idmobile.co.uk/live-chat

The advisers work between 9am - 8pm on weekdays, and the chatbot works 24/7.

Hi @Myles9 

Please could you let us know the postcode(s) you’re having issues in?

It’s worth noting that we do not guarantee any minimum data speeds.

If you’re within your cooling off period, you may decide to return based on being unhappy with the signal.

Tom