I am on Fibre 65 and didn't need an engineer visit i simply plugged the router they sent in on the day of activation and it worked.
Here is how to cancel but if there is a fault on the line how will that work?
CANCEL YOUR TALKTALK SERVICE
We're sorry to hear you're thinking of cancelling. We believe everyone should be able to enjoy affordable broadband, TV, mobile and calls without problems or frustration; if we've fallen short of this in any way, please let us know.
We'd love you to stay, but if you're sure about cancelling you'll need to speak to us. We'll walk you through your options, discuss any charges and explain how you can return your TalkTalk equipment. You can call us now on 0345 172 0046.
CANCELLING WITHIN YOUR CONTRACT TERM
If you're cancelling before your contract has ended, early termination fees may apply. We'll let you know if this is the case and how much it will be when you speak to us. You can check your contract end date in My Account under My Package.
CANCELLING WITHIN YOUR FIRST 20 DAYS
If you change your mind and want to cancel within 20 days of your order date, you're free to leave without penalty and you'll only pay for the TalkTalk services that you've used during this time.
GREAT CONNECTION GUARANTEE
If you recently signed up for Fibre broadband, then you're also covered by our Great Connection Guarantee. If you're not satisfied with your Fibre connection in the first 30 days of your services going live, you're free to leave us and you'll only pay for the services you've used.
https://community.talktalk.co.uk/t5/Articles/Cancel-...
Edited by Jack_Hackett (Wed 15-Dec-21 19:04:15)