Tesco Sales Assistant interview questions

Straight forward usual interview techniques but twice I have interviewed for a store local to me and although I have loads of retail experience did not get the job - took a one elsewhere in the end for another retailer. Think head office select you for interview but then the manager looks like they are just going through the motions with interview and not really interested. Even though worked for tesco before and know all the rules and procedures still dont get job!

questions pertaining to previous sales roles and why i would be a good fit for this role? - What qualities do I have that are useful for this role ?