A reader tested this purchase, and it seems only 100% cash back tracked automatically. It’s unclear whether this will be adjusted later.

Right now, if you go through TopCashback to buy Surfshark’s VPN + Ad Blocker service, you can get 108% cash back. In other words, spend $100 and get $108 back, effectively coming out ahead. Keep in mind that you must use the promo code provided on TopCashback, and you must subscribe to a service term longer than 30 days without canceling during that period, otherwise you won’t receive the cash back.