Most bonus-code guides stop at "where is the field." This one is written for Canadian players who care about the games — because a bonus is only as good as what you can play it on and how fast that play clears the wagering. A HiSpin code is entered inside your own logged-in account, at the cashier on the official HiSpin site or app, and never on a third-party page. Past that mechanical point, the interesting question is which games the free spins land on, and which game categories actually count toward clearing a bonus.
If a page other than the official HiSpin site asks you to "enter your bonus code to claim," close it — that is the phishing pattern. Codes apply after you sign in yourself.