Lost 3G connection on iphone 5, how to fix?

So I'm on "Three" and have since found out they have very fast internet connection/speed but seem to always be losing connection, I was on the internet on my phone then all of a sudden I lost connection, the 3G is gone and can't get it back.

I'm ready to throw it out of the window, any help?

You can't

Yea. Ring them and tell them to sort it. If its on contract.

If its is actually on contract use the sale of goods act on them. Unfit for purpose

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