As part of their "Autumn Food Festival", Amazon Fresh are doing 50% off on dairy and bakery items. On top of that you can get £20 off £60 spent (1st Amazon Fresh orders only).
Fill your basket with dairy and bakery items for £60, it will slash the price down to £30 in the checkout, then apply promo code FRESH60 and that will make the total of your order £10.
You are not restricted to buying dairy and bakery items only, I'm just saying the scenario above will make the best deal.
CR0, CR2, CR4-5, CR7-9
E1, E10-18, E1W, E2-9, E20, EC1A, EC1M, EC1N, EC1R, EC1V, EC1Y, EC2A, EC2M, EC2N, EC2P, EC2R, EC2V, EC2Y, EC3A, EC3M, EC3N EC3P, EC3R, EC3V, EC4A, EC4M, EC4N, EC4P, EC4R, EC4V, EC4Y
KT1-10, KT12, KT17-KT22
N1, N4-11, N13, N15-19, N21-22, N1C, NW1, NW3, NW5, NW8
SE2-5, SE7-16, SE17-28
SW2, SW4, SW8-9, SW11-20
W1A, W1B, W1C, W1D, W1F, W1G, W1H, W1J, W1K, W1S, W1T, W1U, W1W, WC1A, WC1B, WC1E, WC1H, WC1N, WC1R, WC1V, WC1X, WC2A, WC2B, WC2E, WC2H, WC2N, WC2R