Why don’t you ask the Wal-Mart management at your store what the company policy is concerning 401Ks. You make the deposits into the account on a regular basis . That is your duty if you wish to retire in style. Wal-Mart will advise you of their policy. I am surprised you were not informed when hired.
go to the website:
There is a lot of information on there for employees and it details the 401k Look in the “My Money” section