Complex sentence: It should be noted that no announcements, related to endorsement, have been made by Paiste and that audience members at some concerts on this tour have reported seeing Zildjian cymbals present on his drum set.
Split into simpler sentences: It should be noted that no announcements related to this endorsement have been made by Paiste. At some of these concerts, audience members have reported seeing Zildjian cymbals present on his drum set.