I’ve not had my op yet, its next month. I booked my op 4 months in advance as that was what worked for me but I’m sure you could go for an earlier date but depending on who your surgeon is these can be few and far between.
I paid a £500 deposit to secure the date and then paid half of the remaining balance for the finance deposit, everything else comes out in monthly payments. If you apply for finance before you book, I think it’s only the deposit for that you need to pay (50% of procedure cost) to book the date. Approval of finance for me was instantaneous. Xx