Around line 182 to 188 in [url removed, login to view]
Add If booking time is < 3 days charged at 3 days plus message stating "minimum booking is 3 days therefore you have been charged for 3 days parking"
AND CHARGE THEM FOR 3 DAYS
( if they book for 1 day they get charged for 3 days, if they book for 2 days they get charged for 3 days, if they book for 3 days they get charged for 3 days, if they book 4 days they get charged for 4 days etc)
2. Additional services for them to add - these can be just hard coded and do not need to be brought from database.
So for instance with a tick box next to each - if they select one or more it adds the price to the price in 1.
Around line 196
tyres cleaned £2
battery charged £4
An example of additional services that is similar is here [url removed, login to view]
2nd step in example ( additional items)