skywaytoheaven
Your original question regarding starting COS was a very basic "I should know this".
How can you possibly make any decisions on your future without knowing the very basics.
Was given some salary/pension/leave/housing details with the interviews, not much more.
As yourself what does this tell you about your potential new employer. If they aren't clear about your basic contract what else will they hide from you in the course of your employment here.
There is still time to reconsider your decision to accept a job here.
Think about it.