nominatim: remove support contact from block message

Author: lonvia

cookbooks/nominatim/files/default/website/403.html

@@ -14,10 +14,12 @@ <h1>Access blocked</h1>
 <p>Please review the terms and make sure that your
 software adheres to the terms. You should in particular verify that you have set a
 <b>custom HTTP referrer or HTTP user agent</b> that identifies your application, and
-that you are not overusing the service with massive bulk requests.</p>
+that you are not overusing the service with massive bulk requests.
+If you do that then the block usually goes away after some hours of inactivity.</p>
 
-<p>If you feel that this block is unjustified or remains after you have adopted
-your usage, you may contact the Nominatim system administrator at
-[email protected] to have this block lifted.</p>
+<p>Please be aware that we are providing this service as-is and without any
+guarantees. We cannot provide support. If you need that, please have a look
+at comercial alternatives (also listed on the usage policy page) or set up
+your own instance of Nominatim.</p>
 </body>
 </head>