try to calc update costs in form

templates/upgrademailhosting.tpl

@@ -165,7 +165,7 @@
 						<td class="clearfix">
 							Zusätzliche Kosten: 
 							<div id="{$configoption}addprice">
-							</div> ${$ccurrency.code} / Monat
+							</div> {$ccurrency.code} / Monat
 						</td>
 					</tr>
 				{/foreach}