I'm trying to use surround.vim plugin and make a basic surround with a  sign. Documents states that i need to for example select a word with v and press s. However, i'm not able to use that nor any other surround command because s char removes my selection and enters interactive mode. So basically using Vs on example_string string gives me  instead of example_string. Thanks in advance for any clues!
Surround.vim deletes selection
plugin vim surround