If interested to attend Hannover Messe, use https://www.hannovermesse.de/en/?open=ticketRegistration&code=PQyzk
with the code: PQyzk
This voucher is available to 200 users, so be quick!
Please note you will still need to register to receive their ticket, but this will be free of charge.
Alternatively go to the ticket website, and use the code : https://www.hannovermesse.de/en/application/registration/ticket-registration/