I worked in group pensions for six months 50 years ago, so my knowledge is possibly a bit dated; but back then she could have got a Transfer Value, based on paid-up pension to her date of leaving. She could then put that money into any other pension scheme. I'm not too sure about receiving it as a lump sum, though. My own inclination would be to leave it in pensions, but I've always leant to the safer side.