Supermarket giant Sainsbury's has angered customers by ditching Classic Coke from its £3 meal deals, blaming price rises in the wake of the new sugar tax.
It has dropped 500-mililitre bottles of the cola from the lunchtime promotion, altering shoppers with shelf stickers.
Supermarket bosses said 500ml bottles of Diet Coke and Coke Zero Sugar would still be included in meal deals.
A spokesman for the retailer twweted that, following the introduction of the sugar tax, the price of Coca-Cola had risen.
She said customers could still buy a 250ml can of Classic Coke, sandwich and snack for under £3, less than the price of a meal deal.
However, the move has prompted criticism on social media from shoppers, who argued Sainsbury's should have put the price of meal deals up.
Some said it inconvenienced shoppers who did not want to drink Coke made with sweeteners instead of sugar.
Similar anger was aimed at Tesco's move to offer 375ml bottles of Classic Coke with its £3 meal deals earlier this month.
It downsized from the 500ml bottles it had previously offered without changing the promotion price.
Tesco warned the tax meant branded drinks may be more expensive or come in smaller sizes.
It said it's own-label drinks had been reformulated in line with the tax.
Classic Coke has become 10 per cent more expensive on average. It has replaced 1.75 litre and 1.25 litre bottles with 1.5 litre and one litre versions.
A spokesman for Coca-Cola Enterprises would not comment on Sainsbury's move, but said pricing was at the discretion of retailers.