I am a small business with two retail sites... Talktalk is great and the internet speed is quick until you have a problem ... then it is absolutely diabolical. I have had the same problem at both my shops with 6 months where suddenly the Talktalk router /broadband connection stops my credit card terminal connecting to the internet . Talktalk support in this event is non existent... you are on your own . They tell you that’s its not there problem and to fix it yourself ... well I had a computer expert spend over 3 hours trying to sort it out but no luck so how they expect a customer so sort it out themselves is beyond me. We are now back to using a dial up connection for the credit card machine. My second problem was my phone stopped working and the internet speed dropped to 20/25 instead of 65 ish... contacted Talktalk support on Thursday morning at 10.30... they checked the line and said there is a fault with the copper wiring we will contact Openreach to give out and fix the fault and we will get back to you with 48 hours... call again on Saturday morning 48 hours later to be told that they have been testing the line for 48 hours and there is a fault with the copper wiring and they will now contact openreach ... really so I have been without a phone service for 48 hours where absolutely nothing has happened ... extremely ☹️ rubbish service when things go wrong!