try to calc update costs in form

templates/upgrademailhosting.tpl

@@ -5,6 +5,8 @@
  **********************************************************
 *}
 
+{debug}
+
 {if $overdueinvoice}
     {include file="$template/includes/alert.tpl" type="warning" msg=$LANG.upgradeerroroverdueinvoice}
 {elseif $existingupgradeinvoice}