I've been a good customer of M&S clothing for years but I am unlikely to continue to be so following your installation of primarily self scan tills at Wolstanton store. Today there were only 2 people on the general till dealing with one person with a problem causing severe queue. Only one helper on the self scan tills and all had customers waiting for help. My problem was getting the credit card loyalty vouchers to work. No instructions. Lots of disgruntled customers. Very few staff. Wanted gift receipt but unable to work this out on the machine. Retrograde step M&S and you're likely to lose customers and goodwill.