While I was checking out Nord’s prices, the best one had 3.67 per month for 24 months + 3 months free. But the charge is 99 bucks, which is 3.67 for 27 months. You’re not getting 3 months free, just extra 3 months of same discount value?
It’s just the monthly price that changes so you could see how much you’d save, the actual price you pay stays the same but you get the extra months. So at the beginning price is 24 x 3.7 = 89$, but with extra months it’s calculated to 27 x 3.29 = 89$.