I’ve joined talktalk, with their fastes broadband on 15th of november 2018. From the very first day, the internet speed I was getting 40-54Mbps was way below the minimum guaranteed 66.6Mbps. As every broadband provider, talktalk says that the first 7 days, the internet gets stabilised and the speed settles, however after 2 weeks, i was still getting 54Mbps and below. I’ve contacted talktalk several times, they’ve sent out an openreach engineer, who looked to the settings, line quality and identified that nothing is wrong with my line and setup, just talktalk is not providing the promised speed. Today, 2.12.2018 I’ve contacted talktalk, that I’m not happy with the service they provide, and as they have the “Great Connection Guarantee” i’m still in the cool down period to freely cancel my broadband with talktalk. After requesting the cancellation on their online chat, my internet stopped working for 15 mins, and i got disconnected from the chat, after which I’ve received an email from talktalk, that i need to pay £359 as for early cancellation fee. (Still inside they great connection guarantee cool down period). Also just to mention, that when I opted to go with talktalk as my broadband provider, I've signed a contract for £26/month. Without any notification from talktalk, they raised my monthly bill to £28/month, this way my first bill ended up being £29.9 (£1.9 was the fee, that they took over my service from ee 1 day before my service month started) Conclusion: talktalk offers are just an illusion, they have a lot hidden costs which they forgot to mention and also their “super fast service” is terrible.