It looks to me like I was blacklisted for EN Wikipedia API requests.  My website has been using the API for awhile now, but suddenly I'm getting 403 errors coming back.  I've tried to follow all the rules, but if I've missed something I'm happy to make changes.  What disturbs me most is that there was no attempt to contact me before being blacklisted to let me know there was a problem.  Where should I go to find out what the problem is?