Are you planning to organise a bigger event or is your 15€ per person and semester not enough?
Then you can talk to the responsible student representative or department head* and apply for sponsorship. It is important that the sponsorship is approved by the ÖH before the event takes place and that an amount is agreed upon. The decision whether and how much to sponsor is up to your contact person.
What you need for a sponsorship:
Fully completed sponsorship application (the justification should include a pedagogical added value [e.g. networking, reflection, etc.] and a brief explanation of the pre-agreed arrangement).