Live coaching tutoring sessions and MOOCs is available for three levels A B C levels A1 and A2 B1 and B2 and C1 and C2 are therefore respectively mergedLive coachingcan be accessed via the Live Coachingtab of the Erasmus OLS language courses in the following languages

What is the correctly punctuated version of this sentence?
Live coaching (tutoring sessions and MOOCs) is available for three levels (A, B, C): levels A1 and A2, B1 and B2, and C1 and C2 are therefore respectively merged.Live coachingcan be accessed via the "Live Coaching"tab of the Erasmus+ OLS language courses in the following languages.