Renewing passports and getting finger prints

hi there...I'm a mum of 4 in scotland from south africa with an indefinite leave to remain.my passports about to expire real soon.Ive tried enquiring about the finger prints .only info I received so far is that it can be done at the police station at a fee of £84 incl vat.would be grateful for any input or anyone's experience with this
Tia
lin

Hi and welcome to the Forum.

This guy may be able to help; follow this link.

Cynic
Expat Team

Thank you so much .
Linda