Misleading advertising got me, my bad... or is it my bad?

Got suckered into buying my MacBook Air from iStore because of their, in my opinion, VERY misleading advertising and lack of direction from the sales assistant. In bold it says (pamphlets and e-Mails) "Get 15 months of Microsoft 365 when you purchase any Mac or iPad*" My bad for not reading the fine print "*Applicable with the purchase of Microsoft 365 Personal or Family. Offer includes 3 extra months for your 12 month subscriptions. Ts and Cs apply." Shouldn't you rather proclaim in bold: Get an extra 3 months when you purchase... yada yada yada yada? It would've been really awesome if the sales assistant highlighted my delusion rather than "Yeah, just go online and register!" without selling me the 12 month subscription... What a disappointing experience! Especially now that it seems the subscription had to be bought with the qualifying product (my new MacBook Air) to get the extra 3 months... Oh what joy awaits me when I go back to iStore Garden Route tomorrow! Very disappointed customer