Usually account specific, but worth a look. If signing up to Sky TV, nothing in T&Cs about going through TCB or QC.
50 cashback with Sky when you sign up / recontract with Sky.
Earn £50 Cashback when you join or recontract with Sky TV and pay by Direct Debit. Offer expires 23/02/2021. Cashback will be paid at the end of the following month after your 2nd Direct Debit payment. You must have made your second Direct Debit payment by 11/05/2021 to qualify for cashback. Offer valid once per customer only. Offer excludes Sky Mobile, Broadband & Talk. Terms & conditions apply, see sky.com. Subject to credit check. Click here to find out more about Sky.