We open the investigative file on Costco UK and British supermarkets to uncover the hidden rules, subscription fees, and small print you agreed to without reading. From banned price-comparison notes and mandatory exit checks to stealth shrinkflation and confidential suppliers, we reveal what the retail giants don't want you to know. Which warehouse or supermarket change annoyed you the most, and are you renewing your membership anyway?
costco uk, supermarket investigation, uk grocery prices, shrinkflation uk, consumer rights, wholesale club, tesco, aldi, sainsburys, bulk buying