You really need to speak to a pensions advisor about this, you can ask your employer to set up a meeting but there may be a charge for this, if there is I would get someone else to advise you. What I would say is ask your Mum/Dad/brother/sister/friend for a recommendation for who they use for there pension and life business.
This is a complex area and you do need proper and sound pension benefit's advice as this will determin who much tax free cash you can extract out of your pension fund either at age 50 or 60 or NRA