This shop is manned by an army of incompetent drones with a low hive intelligence. The shelves are perpetually in a state of being restocked, with carts to load on to them always blocking aisles. If you need a basket, good luck; maybe check the tills for one someone is done with, because they never restock the pile by the entrance. The queues are absurdly long though, so you'll have to fight your way to the front.
They have a returns service for a few companies, but the machine that is supposed to automate this process never works, which leaves the customer to try to negotiate with the dullard manning the manual printing machine.