Piles of squalor left dumped in a Sainsbury’s car park “for months” has triggered concerns over a potential rat infestation. Sainsburys said today it will roll out additional collections to clean up the mess following calls for action. District councillor for Seasalter ward Charlotte Cornell (Lab), told KentOnline she fears the mess at the Kingsmead Road store has been going on for months and could attract rats. “Flytipping attracts flytipping so it might have been overspill from some donations that couldn’t fit into the bank, which then has had extra rubbish added to it,” she says. “It’s grub…