The UK’s worst supermarkets have been revealed, and the unwanted last spot was shared by two brands.

       The survey conducted by Which? found that Asda and Morrisons received poor ratings in terms of overall customer satisfaction, with some shoppers claiming that “they have gone downhill.”

       Around 3,200 members participated in the annual customer satisfaction survey by Which? between October and November 2024.

       They quizzed both in-store and online shoppers about value for money, overall customer service, stock availability, range, and the quality of own-label and fresh products.

       Asda and Morrisons both scored an overall score of 66%, putting them at the bottom of the in-store table.

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       The major supermarkets were the only two that failed to score more than three stars in any category.

       Writing a review for Morrisons, one of the customers said: “Morrisons has gone downhill.”

       Similarly, several customers told Which? that their local Asda stores often have bare shelves and unmanned checkouts.

       Online shoppers awarded Asda a middling three stars for delivery and the availability of time slots but were unimpressed by its product range and customer service. The store got just two stars for value for money as well.

       An Asda spokesperson said: "We are focussed on making Asda the top choice for hard-working families once again, but we know rebuilding this trust takes time.

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       "Since this survey was conducted last October, we’ve made significant investments to improve the shopping experience - adding more colleague hours in stores and launching Rollback, which has lowered prices on thousands of popular products by average of 25 percent.

       "These changes are already making a difference as Which? acknowledge. There’s much more to come this year as we work hard to get Asda back on track."

       Meanwhile, taking the top spot is M&S, with a customer score of 79% – despite often ranking alongside Waitrose as one of the UK’s more expensive retailers.

       Reena Sewraz, Which? retail editor, said: “Our supermarket survey shows that a good shopping experience and quality products really matter to consumers - and M&S beating its rivals to the top spot shows some shoppers are prepared to pay a bit more for that.

       “Aldi, Lidl or Iceland may be the preferred choice for those who prioritise affordability above all else.

       “For people lucky enough to have a choice of supermarkets, mixing and matching to get the right mix of quality and bargain prices might be the right approach.”

       Express.co.uk has reached out to Morrisons for a comment. They declined.