Pressure is being “ramped up” on major supermarkets to clean up their act over abandoned shopping trollies strewn all over a town. Nearly 250 carts have been dumped in and around Swanley over the last couple of months alone. Since the last week of December, Swanley Town Council (STC) says it has had to collect 210 Asda trollies and 34 from Aldi. But while Aldi’s carts have wheel lock technology in place to stop them being removed from the car park, the local authority says Asda turned this technology off when the pandemic started. Shopper Margaret Harding said: “They can be seen all around the…