Dentist

I’ve been to the dentist last week and was told I needed to have a tooth extracted. I have been told they were going to book me in for a surgeon . I just got a call from the dentist saying if the surgeon can’t extract it under the nhs I will have to pay 150£

I have had tooth’s removed before and it’s always been under the nhs so I’m confused as to why It can’t be done by the dentist and why do I have to pay when I’m on exemption.

Should I go to a different dentist?