I thought I was drinking a detergent

I am extremely appalled by the vile taste that was left in my mouth after i had just opened a can of Fanta Orange that i bought on the 15/11/2017 at Chicken Licken Kensington B (Bramfischer Drive) . The cold drink 's expiry date sates the: 31/05/2018, however the taste suggest something only nightmares are made of. My colleagues and I all had a taste and it left much to be desired!!! I demand a full refund and compensation for the torture my taste buds had to endure especially considering the fact that I paid for this "poison" !!!