TESCO, which has stores across the city and Worcestershire, has been voted the most improved supermarket.
The UK Customer Satisfaction Index, which is a biannual national survey of 10,000 consumers, found the supermarket was most improved due to the quality and helpfulness of staff.
The UK's biggest supermarket recorded the sector's largest year-on-year increase of 1.2 points in the index.
Meanwhile Amazon was found to be number 1 for customer satisfaction in the survey, realised on January 20.
Jo Causon, chief executive of the Institute of Customer Service, said: “It has been widely acknowledged that customer trust in Tesco suffered during the 2014 accounting scandal which saw the company lose touch with loyal patrons.
"This loss in trust saw record losses of £6.4 billion during 2014/15 but a renewed focus on service excellence has finally got customers back on side."
“The importance of the customer cannot be ignored when it comes to business success for UK supermarkets."
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