Went to Thurrock store Sunday 25/7/21 to buy wife's walking boots. Selected a pair of boots which were priced £100.00. When I got to the till I was asked if I wanted a membership card. I declined. Cashier then said the boots were £1135.00. I objected and pointed out they were clearly marked up for £100.00. Her answer was the advertised price was with membership discount. If I wanted the boots at that price I would have to pay £5.00 for a card. My wife wanted the boots so I paid for the card. Staff were completely unhelpful. The store could not measure feet either. I wonder if the practice is even legal. There should have been a clear notice saying the price advertised was only available with a membership card. Does anybody know if the practice is legal?