Can i sue a company if i worked 2 days and they never sent me my paycheck ?

You probably can, but the time and effort of doing it yourself and/or hiring a lawyer might outweigh the benefit.

As others have said, there is a possible class action lawsuit here, particularly if you do have the proof you claim. An individual lawsuit likely...

Can I file a private lawsuit against a company even though there is a class action suit against them?

You can, but you will likely be swallowed when the lawsuits are inevitably consolidated (if they haven't been already) in what is called an MDL...

How do I go about suing an author for fraud and false advertising?

If the facts are as described, you'd seem to have a good claim for $300 in damages. The issue is that you'd be hard pressed to find an attorney...

Do I need to go to Court or... ?

You may want to look into going to small claims court. It will be difficult to find a lawyer to take a case with only $180 in damages, and it would...

You could conceivably sue a bank on your own. I can't think of any situations where someone would *have* to be part of a class action to sue. That...

I purchased an HKC Tablet from Fingerhut, I returned it for repair to Fingerhut several times because the tablet won't work

I agree with Ms. Sahler for the most part, but I always suggest that people do their best to resolve claims with the company through the usual...

Computer pop-up that said my computer was affected by malware or a virus. They charged me $249.99. Can I get my money back?

You may, but more facts are needed, such as whether you actually had "malware" or a "virus" that was detected by this popup (extremely unlikely)....