% optional
% \address{street and number}{postcode city}
% '\\' adds a line break
-\address{Teststreet 17}{03333 Nicecity\\ Switzerland}
+\address{Teststreet 17}{03333 Nicecity\protect\\[0.1em] Switzerland\protect\\[0.2em]}
% optional
\phone{+43(0)999 9999}