Jennie Johansson and Michelle Coleman have been banned from the National team after repeatedly covering up sponsors logos on their clothes and in photos in social media(!) Whoms logo has not been reported. Apparently one sponsor drew out of a bonus system to the swimmers.
The European Championships in Berlin 2014 it all came to a head and they were both, plus one other swimmer, given written warnings.
Then they tried to go back into the Olympic Village in Rio this Summer after they were finished competing to join in the Closing Ceremony. Peter Reinebo, operations manager for the Swedish Olympic Committee, stopped them.
Henrik Forsberg The Swedish Swimming Association's (Svenska Simförbundet) Sports Head said they did n't trust them anymore after all the incidents and the Rio "incident" being the last straw.
UPDATE - Looking at photos from the European Championships in Berlin 2014 (for example [url]http://www.masterskapssidan.se/tävlingar-2002-2015/simning-2014/dag-3___-22677405[/url]) Eon seems to be the sponsor in question. Eon have been a sponsor since 2005.