1) In the lower section, you can choose to use the proposed version
When buying a license you will receive always the latest version. You can install the version on your server, you can select while installation according to the manufacturer's permissions.
2) The type "server, add or incl. User" and whether the license as an upgrade or a NEW USER license, you can also choose below. The price to upgrade will be reduced according to your price list.
3.) The license wil be delivered as ESD File only.
4.) An exchange is possible only within 14 days. However, be stressed that the manufacturer reserves the right to accept the RMA request. A contract for the RMA Dsitribution costs then also 95 € and without warranty. In fact one can almost say that a withdrawal is impossible.