Use the code CELEBRATE at checkout for 25% Off on the app. 20% discount if used on the website. Currently works on old accounts as I bought it with my 5 year old Groupon account. So bought the £80 deal as I missed out last time.
a) £40 of shopping for £29 + 3 month free delivery pass (£21.75 with code)
b) £60 of shopping for £40 + 6 month free delivery pass (£33 with code)
c) £80 of shopping for £59 + 12 month free delivery pass (£44. 25 with code)
Many thanks to Chanchi32 for using their original post on the same offer. http://www.hotukdeals.com/deals/ocado-new-customers-40-shopping-for-20-30-60-shopping-for-30-80-80-shopping-for-2513863