I looked at the sample contract on EPIK's website and it is in Article 13.7You shouldn't worry about it. EPIK follows the law and severance is not a benefit from the contract, it is required by law.
Pension is what you get when you 'retire' or leave Korea. You will get it after you have left Korea. Severance is given when you leave your current job after 365 days. If you renewed with your job for 3 years then you will have 3 years of severance saved up. There is a lot of information about these two things on this site and on the internet. I recommend you read up a little on them since you seem to not understand the two of them. You have quite a bit of money out there that you will eventually get. Read up and learn when you will get and how to get it.
Currently in EPIK, contract ends in October. Hoping to change to a F-2 (points) visa before then, and get accepted for SMOE (alternatively, a hagwon) in February 2018.Do I need a new CBC when applying (August), or would the one on file / a copy of it be okay?