Maternity Appointment, work won’t pay me for them?

Hello!

I had my first maternity appointment on Monday, all went well. The appointment was first thing. I booked my scan and am very excited! (Around 10 weeks at the moment)

I informed my workplace that I had this appointment and went straight to work after, but when I turned up my manager said that the appointment would be unpaid, they did say I could work extra to make up the hours.

I’ve been left very confused, according to citizen advice appointments should be paid.

Can anyone shed some light on the situation?

UK, working in the public health services