Horrible Tasting Coke bought Regularly.

For the past 4 months or so, maybe longer, every so often, I would purchase a bottle of Coke that tastes horrible, so much for the bottle saying Original taste, I have had enough, It's both in 2 litres as well as the 1.5 litres, Pick and pay were running a special once again over this past weekend where you buy 4x 1.5 litres for R50, Guess what, I just opened the First bottle of this purchase and once again it tastes like ****, Do not have ANY hope that the other three will taste normal. It's always the same taste, almost like certain shifts just cannot follow the "Original" Recipe Correctly, It's like drinking regular Coke and then switching to some Horrible cheap, No Name Brand Cola, but believe me, It's the Real Deal but at this stage, I think those No Name Brands tastes better. Get it right, People pay a boat load of Money to still enjoy the real product, If it was a once off, one could still understand, but this is now happening on a regular Basis and I am SICK of it!!!!!!!!!!! Oh, and it's not from the same store, I have bought these faul tasting "Coke" from various Spar's, and PicknPay's in Kempton Park.