Trade in value

[brad67]

I'm interested in purchasing a Pixel 9 Pro and I have a Pixel 8 phone to trade in. Will the value of my trade in be paid into my bank account as a one off payment or will the value reduce the amount of my monthly cost for the new phone? my trade in phone doesn't have any contract connected to it, I purchased it outright.

[PandJ2020]

If you don't currently have a swap contract then you can't swap it...

You can simply purchase the new phone and work out what you want to do with the old one.  (Sell it privately or use a trade in service, there is a Sky branded one here: https://www.skytradein.co.uk/)