A basket of 79 groceries costs £133.73 at the discount retailer.
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The supermarket said it was working to fix the problem.
Yesterday, stocks across Europe fell as companies brace for an uncertain future under the administration's 'reciprocal' tariffs policy.
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It comes after a steep fall in global cocoa production, driven by higher temperatures hindering the quality and quantity of beans.
Prices of some chocolate products have risen by 50% in a year while many have also shrunk in size, Which? reports
Discover the best credit cards to save money, earn rewards and travel smarter.
Check the best savings accounts to find a top-rated deal that works for you.
Discover the best credit cards to save money, earn rewards and travel smarter.