Brglez said in a press release on Monday that he did so to protect the right to referendum from abuse.

The speaker already notified the trade union and will present reasons for his decision on Tuesday.

The trade union filed referendum initiatives challenging the law implementing customs regulations of the EU, changes to the administrative fees law and changes to the protection of cultural heritage law to protest what they call double taxation.

According to the trade union, they have to pay thousands of euros in additional income tax to Slovenia after already being taxed in Austria as daily migrants.

The trade union already lodged two referendum request before last week, but stopped after they had been promised a meeting with Prime Minister Miro Cerar.

According to trade union representative Emerik Neumeister, they agreed on further steps to tackle the issue, but the final meeting with State Secretary at the Finance Ministry Mateja Vraničar Erman "quashed the final hope for a constructive agreement".