I'd be very wary of paying any translator who messes up simple translations that they put into marketing materials. This is how the phrase "traditional characters" is written in each script:

(written in traditional): 繁體字 (written in simplified): 繁体字

Also, the bit about traditional characters being harder to learn reads like propaganda. Traditional character-using areas have higher literacy rates. Also, my own personal experience as a language learner has been that traditional takes longer to write, but it's more systematic in its structure and it's much easier to read.

One further thing worth pointing out is that mainlanders read traditional characters far better than Taiwanese and overseas Chinese read simplified.