Sorry to hear this, Rory. I know, it's frustrating when you pay a premium and it doesn't meet your expectations! That's why I have been using my independent garage for a long time. Back in 1995, when I got my new Civic, I dropped my car at the dealer. I was waiting for my car to be looked at for something minor when I overheard the receptionist talking-he was telling his colleagues how he managed to persuade this elderly customer to take up the more expensive service when the car doesn't even require it! As a guy in his early 20's I was horrified that because they want the bonus at the end of the year, they would do this to their customers!
I think the way forward is to let the dealer principal know about this, and then get him or her to give you a 10% discount voucher-that's what I did! Go to Google review and share your experiences. Despite what people say, companies do look at them. Further, try another nearby Honda dealer that does collection service. That's what I did in the past for my Toyota and it was the best thing I have ever done because they were alot better than my local one!
Merry Xmas!