Shenzhen VOA only meant to visit the city

Hello, I am a Romanian citizen and a Hong Kong resident, and I'd like to visit Shenzhen this Sunday. I only intend to do some shopping in the city, hence I am not interested in getting a Chinese visa proper, so I'd like to find out whether I qualify for that.
Is there any list with countries and the Chinese specific regulations on the possibility of getting a Shenzhen VOA? I've been searching everywhere I could think of.

Thanks a lot for your answer!