We've repeatedly asked PIF to explain how pet shops might obtain puppies from responsible breeders but of course PIF has not even attempted a response, as by definition this is impossible; pet shops do not obtain their puppies from responsible breeders.
You claim this Quality Assurance measure will ensure the "highest standards" are reached by pet shops but you do not appear to recognise that these ought to apply to the entire supply chain rather than just the sale premises - which rarely provide for the young puppy's emotional and developmental needs.
You support a ban on the sale of puppies anywhere unless their mothers are present and of course this includes pet shops, garden centres, online, and through puppy dealers. Brilliant. Now we are finally getting somewhere.