Is There a Message on the Screen Which Says I Was Rejected?

A coin join is a type of Bitcoin that has risk indicators associated with it. If you want to get rid of your coins, people send them to lots of different addresses in the hope they'll be tainted and suspect. So far I haven't heard of any false positive user request that they got associated even though they don't believe that that's correct. To be honest hopefully the vast majority of people listening to this will not ever encounter this.