I also am awaiting delivery of my new 300h in September.
I was quoted £882 minus 10% discount i.e. £794 for 3 services at 10000miles intervals . 19 monthly installments of £40ish. The quote is based on an estimated 15k miles/annum.
I'm not sure if this is value for money, particularly as posts on this forum suggest that service intervals should be 12k miles not 10k quoted in the service plan.