@Busted71 
To cancel Sky Broadband and Sky Talk totally, or if you’re moving to a provider like Virgin Media or City Fibre etc who don’t use the Openreach set up, you'll have to contact Sky and give the required notice of 14 days, but if you are still in the initial 18 months deal Sky could impose cancellation charges. This link may help https://www.sky.com/help/articles/cancel-sky-broadband

If you are changing to another provider who also uses the Openreach infrastructure then join up with them and they should contact Sky on your behalf.

Return packaging will be sent out to you near the end of the notice period. Remember to keep any proof of posting indefinitely.

▪️

To remove part of your Sky Q/+ TV package you will need to contact Sky and give 31 days notice. Be aware if you have 'in contract' discounts you may not be able to remove them. Also make sure cancellation of a certain add-on doesn’t cancel another discount. You can either call or use the messaging service to cancel this
https://www.sky.com/help/articles/cancel-sky-tv