If you go to the SALE section on CountrywideFarmers.co.uk and click show all and scroll down, you will see advertised Pascoe's Country Complete Dog Food at the Sale price of -£8.50. This is 15kg of Chicken and Rice dry dog food for free, and you get £8.50 back too!
All you have to do is pay the delivery charge which is £4.95 to UK mainland and this takes the total to -£3.50?! Now I have ordered some other bits and pieces too, so take the £8.50 off and it has taken my grand total to £9.00!
I have just placed my order, so obviously there is a chance that they may realise and cancel it - but no harm in trying and getting a bargain?