You should feel comfortable in JOYclub.
Therefore you can easily end unsolicited conversations. To do so, please click on the button 'End conversation' at the start of the ClubMail conversation. The conversation will then automatically be ended for 30 days. The other profile will receive an info.
If you don't want to be contacted anymore, you can also ignore the profile here.
The other member will not be able to write to you or visit you anymore.