100 big brands rated for customer service
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Fed up of dreadful customer service? We reveal the best and worst firms for treating customers well, voted for by thousands of shoppers.
We asked thousands of people about the customer service offered by the UK's biggest brands.
More than 3,000 members of the public gave us their views on brands including John Lewis, BT, Sainsbury's, British Gas and Ryanair.
But which came out on top? And which will you want to avoid? The table below shows all 100 brands from our survey, their customer service scores and the star ratings they received for different aspects of customer service.
Which? members can log in to find out which are the best and worst brands in the table below. If you're not already a subscriber, sign up to a £1 trial to unlock the table and get instant access to all the reviews on our website.
How we did our research
We surveyed 3,501 members of the public in May 2015 about the big brands they had interacted with in the previous 12 months, whether face to face or by email, telephone, writing or social networking sites. Brands were chosen based on market share within their sectors and only the largest brands were included.
Each brand was rated on making their customers feel valued, knowledge of products and services, helpfulness of staff, resolving complaints or problems and access to customer support. Respondents were also asked to give brands an overall rating for customer service, which is where our customer service score comes from.