This article is from the Scuba Diving FAQ, by njs@scifi.maid.com (Nick Simicich) with numerous contributions by others.
Call your agency (see agency list above) and get the address to
write to complain to them. The general rule is that they will
investigate (especially if they get several complaints) only based on
complaints in writing, and that they will not contact you to tell you
the results of any action that they take. They will investigate one
complaint, if it is really blatant.
 
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