No worries mate
One last thing to look at is the E/W terms, if they are paying 3 places then it's either 1/4 or 1/5. I'm sure someone will come along and explain what races get which terms because I've got no idea. I worked it out all of them 1/4 odds to get
£16.48, if it were 1/5 for all of them then the return would be
£11.28.