TopCashback are offering a boosted £21 bonus for anyone signing up atm. To get it, you need to sign up (link below), accrue £10 of payable cashback, then the bonus is added. It takes a while for the cashback to clear, sometimes a few months, but I e been using it for years and it’s great. The cashback mounts up and it’s paid for my Christmas supermarket shop every year for the last five years.
Here's my referral link for a free £21
www.topcashback.co.uk/ref/pjandclare/?source=App-iOS-TAFPage