Anyone who is not a limited user will earn a Steam level based on their account's current badges and games. You must create your Steam Community profile to view your Steam level. Limited users do not qualify for Steam levels and will remain at level 0.
There are a number of ways to increase your profile level on Steam. These include:
For more information about your Steam level and how to increase it, please see the Trading Cards FAQ.
Limited users do not qualify for Steam levels. If you are a limited user, your XP will not increase and your level with remain at 0. For more information on limited users and how to become unlimited, please see the Limited Users FAQ.
The XP that you have earned is the correct amount. For further insight, you may try searching or posting on the Steam Discussions.
Steam Support is unable to alter your Steam level and cannot grant XP, badges, trading cards or other economy items.