I worked at a company for 10 years, and a new owner came in and I was let go 4 months into employment through the same company. I was fired without severance over a basic misunderstanding that I was able to fix, and openly honed to. When I asked about severance, they told me no because they had grounds to withhold it from me. According to the gov.bc website, "A mistake or error in judgment is usually not enough" for what is considered to be just cause for immediate termination without severance. Do I have a case?