I haven't bothered with NCT or the ones you pay for as we were trying to save for mat leave and people I know who have for NCT previously said it was more a social thing than educational.. You can do free online antenatal classes through Oxford Maternity Services which are educational and run by midwives that work in the trust so can answer questions about how things work in the trust and are up to date with their policies as well x
We're in Bicester and did bumps to babies. It's run by a local midwife and was really good