For new and existing customers
Get £130 cashback when you switch a current account you hold elsewhere to one of our selected current accounts, using the Current Account Switch Service. To qualify for the offer, within 60 days of telling us to switch your account, you’ll need to:
have successfully completed the switch, which includes closing the account not held with us
set up at least 2 active Direct Debits
pay in £1,000, and
log on to Online or Mobile Banking."
Full terms: https://www.santander.co.uk/assets/s3fs-public/documents/switcher_cashback_terms_and_conditions_sep21.pdf
Note:"2.2 You and everyone to be named on the Qualifying Account will need to:2.2.1 be a UK resident;2.2.2 not have previously received or participated in any other incentive for switching to any of our accounts or any account with cahoot.