The International Organization for Migration (IOM) has set up information and support hotlines for persons fleeing Ukraine in different countries. Please find currently operational hotlines and regular updates here.
 

If you have fled Ukraine, are now in Vienna/Austria, and need support, here is some information that might be helpful:

Ukraine support hotlines in Vienna:

• Caritas Ukraine Hotline: 05/17 76 380
• BBU (Federal Agency for Reception and Support Services) Hotline: +43 1 2676 870 9460
• Diakonie Counselling Centre: +43 1 343 91 91

The following websites/info sheets also contain relevant information:

• UNHCR Austria 
• Austrian Ministry of the Interior: FAQs 
• Federal Criminal Police Office: Human Trafficking Hotline (24/7): +43-677-61343434
• Info sheet by IOM Austria: Indicators for Human Trafficking in the context of arrivals from Ukraine (in German)
• Info sheet by IOM Austria: Prevention of Human Trafficking in private accommodation (in German)
• Information leaflet by NGO LEFÖ about dangers of exploitation and trafficking for displaced persons (English, Ukrainian)

Some more information for Vienna:

• City of Vienna's Arrival Centre
  Address: Schloßberggasse 8, 1130 Wien
  Opening hours: Around the clock, seven days a week  

More information on the IOM Ukraine Response is available here.