I just bought a suitcase, so the combination is 000 (I didn't touch the numbers) and I locked it by mistake. How do I open it?
First, these numeric locks are useless, see this video on how to Decode Luggage Locks. Second, your image is blurry but if I see it correctly that's a TSA 007 isn't it? Well, here's a video on how to pick TSA 007 locks.
Edit: How to unlock a briefcase lock and figure out combo another video on defeating the numlock.
Edit2: if you have a 3D printer, here are the TSA keys.
The default code is 000 but you have to open it by pressing down on the small button and then pulling open the mechanism.
ALL you need to do is keep on 000 and press the tsa lock towards the lock. It should open. I just received my replacement suitcase and had to go online to see why it also won't open. No instructions are ever given from the company .