Cashback Conditions: What '10% Back' Usually Hides
Cashback can be genuine value or mostly marketing depending on the fine print.
Net vs gross cashback
Some cashback is paid on net losses (losses minus wins); some on gross wagers. Net-loss cashback is usually more valuable to the player. The wording in the terms decides which applies.
Caps, wagering, and expiry
Cashback often has a maximum amount, may itself carry wagering requirements, and usually expires if not used within days. A generous percentage means little if it is capped low or expires quickly.
Check before you rely on it
Compare the effective value: capped amount, whether it is on net or gross, any wagering on the cashback, and the validity window. Only then judge whether the offer helps your situation.